Find the x-coordinate of the vertex, y-coordinate of the vertex, and the x-intercepts.
! pls help, I’ll mark as brainliest !
Answers
Answer:
X=-1
Y=-9
Step-by-step explanation:
x^2+2x-8
x^2+2x +1 =8+1
(x+1)-9
x coordinate of vertex x=-1, y coordinate of vertex y=-9 and x=2 and x=-4 are the x intercepts.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The given equation is y=x²+2x-8
then the x-coordinate of the vertex can be found using
x=-b/2a
x=-2/2=-1
x=-1 is the x coordinate of vertex.
substitute this value into f(x) for y coordinate
y=(-1)²+2(-1)-8
y=1-2-8=-9
y coordinate of vertex y=-9.
y intercept is -8.
To find the x intercepts x²+2x-8=0
x²+4x-2x-8=0
x(x+4)-2(x+4)=0
(x-2)(x+4)=0
x=2 and x=-4 are the x intercepts.
Hence, x coordinate of vertex x=-1, y coordinate of vertex y=-9 and x=2 and x=-4 are the x intercepts.
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Related Questions
Last week John’s hamster drank 45 mL of water. This week he drank 25 mL of water. By what percent did the hamster’s intake of water decreased?
Answers
Answer:
Percentage decrease is 55%.
Step-by-step explanation:
Given the following data;
Original (old) number = 45mL
New number = 20mL
[tex] Percentage \; decrease = \frac{change\; in \;amount}{original\;number} * 100[/tex]
Change in amount = 45 - 20 = 25
Substituting into the equation, we have;
[tex] Percentage \; decrease = \frac{25}{45} * 100[/tex]
[tex] Percentage \; decrease = 0.55 * 100[/tex]
[tex] Percentage \; decrease = 55%[/tex]
Therefore, the hamster’s intake of water decreased by 55%.
Simplify. 9-
(2x+4)
Answers
Answer:
-2x+5
Step-by-step explanation:
Answer:−
-2x + 5
Step-by-step explanation:
distribute:
9 - 1 (2x + 4)
9 -2x -4
Subtract the numbers:
9 - 2x -4
5 - 2x
Hope this helps!
ps: don't forget to order the summands after you subtract
Rewrite 68% as a decimal, a fraction and a
simplified
ratio?
Answers
Answer:
0.68, 68/100 or 17/25, and 17:25
Step-by-step explanation:
Find the area of the shape shown in Figure 1 and type your answer into the box below in units squared.
Answers
Answer:
24 units^2
Step-by-step explanation:
I don't know the units but that would be the answer
a line of slope of a 3/4 and passes through two points (-5,4) which is the equation of the line
Answers
Answer:
y=-3/4x+0.5
Step-by-step explanation:
PLEASE HELP
Solve the following system of equations graphically on the set of axes below.
y=3x−8
y=−x−4
Answers
The side lengths of the state flag of Colorado are in the ratio 2:3
2
:
3
. If a flag is 12 feet long, what is its height in feet?
Answers
Answer:
8 ft
Step-by-step explanation:
with the ratio of 2:3, im assuming 2=height and 3=length
multiply both sides of the ratio by a certain number so you can get the given length.
2:3 - multiply both sides by 4- 8:12
the height is 8
Answer:
8 ft
Step-by-step explanation:
You multiply both side by 4 and you get 8/12.
So the height is 8 ft.
PLEASE HELPPPP
The sum of John and Davis ages is 63. Davis is six years less then twice John's age. How old is Dave? (The bigger number)
Answers
Explanation:
PLEASE HELP ME..... PLEASE
Answers
Because you have to cross multiply 7*3 and 8*2 so you get 21 and 16
You subtract that and you get 5 which is your top number
Answer:
answer is 5/24
Step-by-step explanation:
hope it help
If g(x) = 2x2 - 4 and f(x) = 4x - 9, find
f(-4).
28
a
b
-36
c
60
d
-25
Answers
Answer:
D
Step-by-step explanation:
plug in the value to the given expression
f(-4) = 4(-4) - 9
f(-4) = -16 - 9
f(-4) = -25
Marjorie consumed 1.5 gallons of water in one day. How many milliliters are equal to 1.5 gallons, if 1 liter = 1,000 milliliters and 1 gallon = 3.785 liters?
5.6775 milliliters
567.75 milliliters
5,677.5 milliliters
56,775 milliliters
Answers
Explanation: First ask how many liters are in one gallon(3.79) then split that number in half (1.895)and add to that to 3.79 and your final answer is 5.6775
Answer:
56.775
Step-by-step explanation:
Find the requested information based on the given facts.
The base salary is $48,000.
The commission rate is 9% of the total sales of $256,000.
The fee is $7.25 per transaction for 325 transactions.
Determine the total earnings.
Enter the correct answer in the box.
Answers
Answer:
TOTAL EARNINGS: 73,396.25
Step-by-step explanation:
9% of 256,00 is 23,040
Add 48,000
7.25*325 is 2356.25
Add all together
23,040+48,000+2,356.25
you get
73396.25
TOTAL EARNINGS: 73,396.25
A realtor sells 3 houses this month for a total of $825,000, and each buyer uses her company to process their loan.
She earns a base pay of $2,600 each month
plus 1.5% of her total house sales.
She also gets a fee of $12 for each loan she gets serviced through her company.
What are her total earnings for the month?
Enter the correct answer in the box.
Answers
Answer:
$2,651
Step-by-step explanation:
The first step is to find what 1.5% of $2,600 is.
Secondly, divide 2600 / 100 = 26
Finally, multiply 26 by 1.5 = 39.
Add 39 and 12 to 2600 = $2,651.00 total earnings for the month.
Answer:
15,011
Step-by-step explanation:
Because 1.5 percent of 825,000 is 12375. She gets 2,600, so add that, and 12 times 3 for 3 houses is 36.
Add 12,375+2,600+36, you get 15,011!
—13 < -x+5< 8 iѕ -21
True or false?
Answers
1. Find the value of y using the following diagram. (The angles are vertical angles)
74+5
47
Answers
Answer: brainliest please
Part 1) Option D
Part 2) Option C
Step-by-step explanation:
we know that
In a Rhombus
Opposite angles are congruent, and consecutive angles are supplementary. All sides are congruent by definition. The diagonals bisect the angles
Part 1) What is the measure of angle ?
-----> remember that the diagonals bisect the angles
Part 2) What is the measure of angle ?
Remember that
In a rhombus consecutive angles are supplementary
so
The measure of angle is equal to the measure of angle T divided by
Step-by-step explanation:
2 Tables. A 2-column table with 4 rows is titled Table 1. Column 1 has entries 2, 4, 6, 8. Column 2 has entries 3, 6, 9, 12. A 2-column table with 4 rows is titled Table 2. Column 1 has entries 5, 10, 15, 20. Column 2 has entries 6, 12, 18, 24.
Compare the ratios from the tables.
2:3 is 5:6
10:12 is 6:9
The ratios in Table 1 are the ratios in Table 2.
Answers
Answer:
Compare the ratios from the tables.
2:3 is less than 5:6
10:12 is greater than 6:9
The ratios in Table 1 are less than the ratios in Table 2.
Step-by-step explanation:
its correct in edg2020
Answer:
less than
greater than
less than
Step-by-step explanation:
Direction: Choose the letter of the best answer and we
on your ans
1) Given f(x) = 2x - 5 & g(x) = 3x +4, solve for (gof)(x).
C. 6x - 11
11 - 6
Answers
Answer:
C
Step-by-step explanation:
To find (g ￮ f)(x), substitute x = f(x) into g(x) , that is
g(2x - 5)
= 3(2x - 5) + 4
= 6x - 15 + 4
= 6x - 11 → C
A sequence is defined by the function f(n) - f(n-1)-2 where n represents the number of the term for n>1 and f(1) = 2 what are the first four terms of the sequence?
Answers
Answer:
2
Step-by-step explanation:
BRAINLIEST TO whoever can answer number 8 correctly with the equation please my teacher might get heated if not
Answers
Answer:
48
Step-by-step explanation:
1/2 means a number cut in 2So, 1/2 of a number equals 24, is the same thing as 24 times 224 × 2 = 48I hope this helps!
Answer:
x/2 = 24
Step-by-step explanation:
x = 48
work plug in
48/2 = 24
Did this help!! Is this what you were asking for!!
Find the length of AB
Answers
Answer:
17 units
Step-by-step explanation:
You can find the lenght of drawing a triangle and counting the x units and y units, thereby the AB would be the hypotenuse.
X units ( base ) = 15 units
Y units ( height ) = 8 units
AB = root of 8^2 + 15^2
AB = root of 289
AB = 17 units
Hope it helps :)
Mark it as brainliest answer pls :)
Mr. Stein receives a water bill from city hall. He notices that the city charges $50 for fire and sewer service and $3 for every 1000 gallons of water used. Mr. Stein wants to construct a model describing the relationship between the cost of his water bill and the amount of water he uses. Which statement best describes the model that Mr. Stein should create?
Answers
Complete question is;
Mr. Stein receives a water bill from city hall. He notices that the city charges $50 for fire and sewer service and $3 for every 1000 gallons of water used. Mr. Stein wants to construct a model describing the relationship between the cost of his water bill and the amount of water he uses.
Which statement best describes the model that Mr. Stein should create?
A. Mr. Stein should use a linear model, since the water bill changes at a constant rate relative to the amount
of water he uses.
B. Mr. Stein should use an exponential model, since the water bill changes at a constant rate relative to the amount of water he uses.
C. Mr. Stein should use a linear model, since the water bill changes at a constant percent rate relative to the amount of water he uses.
D. Mr. Stein should use an exponential model, since the water bill changes at a constant percent rate relative to the amount of water he uses.
Answer:
Option A: Mr. Stein should use a linear model, since the water bill changes at a constant rate relative to the amount
of water he uses.
Step-by-step explanation:
We are told that the city charges $50 for fire and sewer service and $3 for every 1000 gallons of water used.
Since there's a fixed charge of $50 for fire and sewer service and also that the city charges $3 for every 1000 gallons of water used. It means that there is a constant rate of charge for every 1000 gallons used.
It means that the bill he gets depends on the rate of water he consumes.
Thus, stein should use a linear model because the water bill changes at a constant rate relative to the water he consumes.
Answer:
A
Step-by-step explanation:
f(x)=-3x2 – 3x
Find the function
Answers
Answer:
x=-2
Step-by-step explanation:
branliest pls
Find the function by taking the integral of the derivative.
so its (-3 x^2)/2 - x^3
PLEASE HELP ANSWER ASAP I WILL BE GIVING BRAINLIEST :)
Answers
Answer:
2,4,6,7
Step-by-step explanation:
can't have the same x value in a function
The functions are:
{(1,3), (3, 7), (5, 11), (7, 15), (9, 19)}{(-2, 4), (-1, 1), (0, 0), (1, 1), (2, 2)}{(6,3), (4, 1), (2, 1), (0, -1), (-2,-3)}What is Function?
In mathematics, a function is represented as a rule that produces a distinct result for each input x. In mathematics, a function is indicated by a mapping or transformation. Typically, these functions are identified by letters like f, g, and h. The collection of all the values that the function may input while it is defined is known as the domain. The entire set of values that the function's output can produce is referred to as the range. The set of values that could be a function's outputs is known as the co-domain.
Given:
We know that the function are relation when the input values only be distinct and the output values can be different or same.
So, according to that
{(1,3), (3, 7), (5, 11), (7, 15), (9, 19)} is a function.
and, {(1, 3), (1,7), (5, 11), (5, 15), (9, 19)} is not a function.
and, {(-2, 4), (-1, 1), (0, 0), (1, 1), (2, 2)} is a function
and, {(2,4), (1, 1), (0,0), (1,-1), (2,-4)} is not a function.
and, {(6,3), (4, 1), (2, 1), (0, -1), (-2,-3)} is a function.
and, {(1,3), (3,7), (3, 11), (7, 15), (9,19)} is not a function.
and, {(1,3), (3,7), (5, 11), (9, 15), (9,19)} is not a function.
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Cynthia, Annie, and Suz went to Pepe's pizza palace for dinner. They shared a large pizza and each girl ordered? A soda. When the bill came they talked about how to slit it up. Annie, you had 3 slices and a medium soda so you should pay one-third of the bill. I'll chip in a dollar more than that, replied Annie.And since you had only 2 slices and also ordered a small soda, you should pay 20% of the bill.Cynthia said I ate 3 slices and had a large soda so I'll pay the remaining $8.80. How much was the total bill for the pizza and th 3 sodas and how much did each girl pay.
Answers
Answer:
The total bill = $20.85
Annie = $7.95
Suz = $4.17
Cynthia = $8.80
Step-by-step explanation:
Let the total bill = $x
For Annie
Annie, you had 3 slices and a medium soda so you should pay one-third of the bill. I'll chip in a dollar more than that, replied Annie.
Annie = 1/3 of x + $1
= 0.33x + $1
For Suz
And since you had only 2 slices and also ordered a small soda, you should pay 20% of the bill.
20% of x = 1/5x
= 0.2x
Cynthia said I ate 3 slices and had a large soda so I'll pay the remaining $8.80.
0.33x + $1 + 0.2 x + $8.80 = $x
Collect like terms
$1 + $8.80 = x - 0.33x - 0.2x
$9.80 = x - 0.53x
$9.80 = 0.47x
x = $9.80/0.47
x = $20.85106383
≈ $20.85
Therefore,
For Annie,
The total amount she is paying is
0.33x + $1
= 0.33 × $20.85 + $1
= $6.95 + $1
= $7.96
For Suz
= 0.2x
= 0.2 × $20.85
= $4.17
For Cynthia
= $8.80
Find the measures of the interior angles.
Answers
B = 88°
C = 44°
the value of (2^-1/ 10^-1)^2
Answers
Answer:
= 25
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
[tex]a^{-m} = \frac{1}{a^{m}}\\\\\\frac{1}{a^{-m}}=a^{m}\\\\(\frac{2^{-1}}{10^{-1}})^{2}=(2^{-1}*\frac{1}{10^{-1}})^{2}\\\\=(\frac{1}{2}*10)^{2}\\\\=(5)^{2}\\\\=25[/tex]
Cathy did a survey in four bird parks and wrote the following observations:
Bird Park Survey
Park Number of Green Birds Total Number of Birds
P 18 82
Q 39 88
R 38 64
S 22 50
Based on the survey, which park had the greatest percentage of green birds?
Answers
Answer:
The Answer is Park R :)
Step-by-step explanation:
Hope this helped!
Answer:
It's park R because 38 is more than half of 64 and that doesn't apply to the other parks so its R
Step-by-step explanation:
can I be brainliest?
A bus travels at a speed of 40 miles per hour and reaches Hogville in 40 minutes. If a cab takes 35 minutes to reach the same spot, determine the speed at which it traveled
Answers
Answer:
1214 kilometers
Step-by-step explanation:
(-3, 2) (-4, 5)
Slope:
m= ll m=
m= ⊥ m=
Please help me with this
I honestly don't get it
We are supposed to find the slope or something idk
Answers
pls double check these im not super sure
im p sure the first one with || means parallel n second one means perpendicular lol
Answer:
m= ll m= -1/3
m= ⊥ m= 3
Step-by-step explanation:
uh regular slope
m = -1/3
parallel - slope is same
perpendicular - product of slopes is -1
if the residuals are near zero, what does this tell me about the best-fit line?
Answers
Answer:
The closer a data's point residual is to 0 the better the fit.