Answer:
A) You would use the two points that are closest to the graphed line
(2,7) and (8,13)
B) Slope = change in Y over the change in X:
Slope = (13-7) / (8-2) = 6/6 = 1
Slope = 1
c) Point slope is written as y -y1 = m(x-x1) where m is the slope y1 is the first Y value and x1 is the first x value.
Equation is: y-7 = x-2
d) To rewrite y -7 = x-2 in slope intercept form, you need to isolate y.
To isolate Y add 7 to both sides:
y = x +5
Step-by-step explanation:
The equation of line which passes through point (-7,-2) and having slope 3 is y = 3x + 10.
What is Algebraic expression ?
Algebraic expressions are numbers expressed using letters or alphabets without specifying their values. Algebra taught us how to express unknown values using letters such as x, y, and z. There can also be a single value that is placed before and multiplied by a variable in an algebraic expression in addition to these letters, which are called variables.
Here, it is given that line passes though point (-3,1) and having slope of 3.
Now, Let us find the equation of the line using point-slope equation of line :
(y-y₁) = m(x-x₁)
Substituting all the values in above equation to get the equation of line :
(y-1) = 3(x-(-3))
y -1 = 3x + 9
y = 3x + 9 + 1
y = 3x + 10
Therefore, the equation of line which passes through point (-7,-2) and having slope 3 is y = 3x + 10.
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HELP ME PLEASE What is 6,728 ÷16
Answer:
420.5 or 420 1/2
Step-by-step explanation:
Find the values of x and y. The diagram is not to scale.
1 point
50
(x-2
(y-1)
66
X=65, y=68
X=68, y=65
X=50, y=68
X=66, y=70
Please help me with this question
Answer:
(0, -2)
Step-by-step explanation:
Function Intercepts "y" in this point
I hope this help you
Which numbers are perfect squares: 64, 15, 26, 100
Answer:
15
Step-by-step explanation:
Answer:
64 and 100 are perfect square roots
Step-by-step explanation:
1.21 divided by 1.1
2960 divided by 0.37
132.03 divided by 8.1
USE A STEP BY STEP EXPLINATION
USING ALL POINTS
Answer:
1.21 divided by 1.1=1.1
2960 divided by 0.37=8000
132.03 divided by 8.1=16.3
Step-by-step explanation:
What is the result when the number 40 is decreased by 50%
Answer:
20
Step-by-step explanation:
40 x 50% = 20
So 50% of 40 equals to 20. Now, since it says decreased by 50%, we have to subtract 20 from 40 because we already know that 20 is the 50%. So 40 - 20 gives you 20.
Answer number 8 thank you(;´༎ຶٹ༎ຶ`)
Answer:
a. Rosemarie has 16 grandchildren.
b. Each grandchild would receive $0.50 or 50 cents.
Step-by-step explanation:
a. There are 4 sons, and each son has 4 children.
Son 1: 4 children
Son 2: 4 children
Son 3: 4 children
Son 4: 4 children
So you can find the total number of grandchildren by adding up the amount of children each of the sons have: 4 + 4 + 4 + 4 = 16
Rosemarie has 16 grandchildren.
b. If the are $8 total, and it is split equally between Rosemarie's sons, it means each son would get $2 (because $8 / 4 sons = 2).
And then each son would split it between his 4 kids. So $2 / 4 kids = $0.50
Each grandchild would receive $0.50 or 50 cents.
Jarrett counted the number of times people sharpened their pencils in class for a week. He counted 13,8,8,11 and 7. Determine the mean rounded to the nearest tenth, mean,mode and range of the numbers.
Answer:
25
Step-by-step explanation:
solve this equation
-10+2x=-40
Answer: X= -15
Step-by-step explanation:
Add 10 from the left side to the right side to arrive at -30. Divide -30 by 2 to solve for X.
Wich relation is a function of x
Answer:
the first one
Step-by-step explanation:
In the other 2 i can see the x repeats itself meaning it isn't a function.
Zachary purchased a new car for $29,995. The value of the car linearly depreciated to $9,300 over 10 years. Write a linear equation to represent the value y of Zachary's car (in dollars) after x years since its purchase.
Answer:
Step-by-step explanation:
y=-1,869.5x+27,995
Step-by-step explanation:
Let
x-----> the time in years
y----> value of Zachary’s car in dollars
A(0,27,995), B(10,9,300)
step 1
Calculate the slope
The formula to calculate the slope between two points is equal to
m=\frac{y2-y1}{x2-x1}
substitute
m=\frac{9,300-27,995}{10-0}=-1,869.50
step 2
Find the equation of the line
The equation of the line into slope intercept form is equal to
y=mx+b
we have
m=-1,869.50
b=27,995 -----> the y-intercept is the point A
substitute
y=-1,869.5x+27,995
hope this helps have a good day
slope intercept form of (4,7) and (-2,-17)
Answer:
y=24x/13+317/13
Step-by-step explanation:
Can you please help the pic is below
Answer:
4.6x3=13.8
0.46x3=1.38
Step-by-step explanation:
The test scores for the Chapter 5 test in Algebra I were:75,95,90,95,60,95,75,95,90Question:a. Find the mean, median, mode, and range of the data.b. Which measure best describes the set of data? Why?c. If test scores of 65 and 75 were added to the set, what would happen to the mean?
Answer:
mean : 85.6
mode : 95
median : 90
range : 35
Step-by-step explanation:
B The mean
The reason why is because it shows the average test score of all the students .
C The mean would decrease because there is more numbers to divide by after adding all of them together .
Activity 1: rewrite me!
1. write the equation 2x+3y=12into y=mx+b
Solution
2x+3y=12
2x + (____) + 3y = 12+(-2x)
(____)3y=(-2x+12)(____)
y= - ⅔x +4
Given:
Simplified as y= mx+ b
2.write the linear equation y= -2x -1 into Ax + By = C.
solution
y = -2x-1
y +(____) = - 2x + (___) - 1
2x + y = -1
Given:
Questions:
1. how did you write the linear equation y = mx + b to the form Ax + By = C?
2. how did you write Ax + By = C?
3. what mathematical concepts or principles did you apply to write each linear equation to standard form?
to y=mx+b form?
brainlest pag Tama ang sagot plus eh fo-follow ko na din.
nonesen report
1) The equation 2y + 3x = 12 in the y = mx + b form is [tex]y = -\frac{2}{3} x + 4[/tex]
2) The linear equation y = -2x - 1 in the Ax + By = C form is 2x + y = -1
The point-slope form of the equation of a line is y = mx + b
where m represents the slope
b represents the y-intercept
The given equation is:
2x + 3y = 12 (Given)
Subtract 2x from both sides
2x + (-2x) + 3y = 12 + (-2x)
3y = 12 - 2x (Equality property of addition)
3y = -2x + 12 (Commutative property of addition)
Divide both sides by 3
[tex]\frac{3y}{3} = -\frac{2}{3} x + \frac{12}{3} \\\\y = -\frac{2}{3} x + 4[/tex](Equality property of division)
2) Write the linear y = -2x - 1 into Ax + By = C
y = -2x - 1 (Given)
Add 2x to both sides
y + 2x = -2x + 2x - 1 (Equality property of addition)
y + 2x = -1
2x + y = -1 (Commutative property of addition)
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3x+y-2x^2=11
finding out if this equation is linear or not.
Answer: It is not linear because the graph doesn't form a straight line.
Step-by-step explanation:
The ratio of girls to boys in a swimming club was 1:4. There were 10 girls. How many
boys were there in the club?
Answer:
40 boys
Step-by-step explanation:
The 1 part of the ratio refers to 10 girls and represents 1 part , then
4 parts = 4 × 10 = 40
There are 40 boys in the club
Pls help I will give 20 points if anwser is correct
-8 3/4 divide 2 1/6
Answer: Improper form: -106/26 Mixed fraction form: -4 1/26
Decimal form: -4.03846153...
Step-by-step explanation: Simplify the expression, if possible, by cancelling the common factors.
what is the length of the x component of the vector shown below
Answer:
D
Step-by-step explanation:
x=8*cos(34°)=6.632≈6.6
the quantities x and y in the ratio x/y are called
Answer:
"Unit rate" is the answer po
PLS HELPPPPP Which expression is equivalent to 4−a−a−a?
Answer: " 4 − 3a " .
________
Step-by-step explanation:
" 4 − a − a − a " ;
= 4 − 1a − 1a − 1a " ;
= ? " ;
________
Combine the "like terms" :
________
→ " − 1a − 1a − 1a " ;
= (− 1a − 1a) − 1a ;
= ( − 2a) − 1a ;
= − 3a ;
________
Now, bring down the "4" ;
and rewrite the expression:
________
→ " 4 − 3a " ;
which cannot be simplified further.
________
The answer is: " 4 − 3a " .
________
Hope this is helpful!
Best wishes to you!
________
Need help ASAP! Directions in picture;)
Answer:
it is 8
Step-by-step explanation:
someone please help
Find the factored form of the expression. Check your answer.
2x^2 + 2 = 0
(looking for an answer
with )
Answer: 2(x^2 + 1)
Step-by-step explanation: its either that or no solution for this question
Five tenths of a circle equals what decimal part of a circle?
Answer:
0.5
Step-by-step explanation:
5/10 of a circle is half of the circle.
Half is 0.5.
Find the value of x.
Answer:
x = 13
Step-by-step explanation:
Sum or interior angles of a triangle is 180,
6x + 19 + 5x - 15 + 3x - 6 = 180
6x + 5x + 3x + 19 - 15 - 6 = 180
14x + 19 - 21 = 180
14x - 2 = 180
14x = 180 + 2
14x = 182
x = 182 / 14
x = 13
The difference of the number g and 8 is at least twice the sum of a number y and 4.
Answer:
g - 8 <= 2(y+4)
Step-by-step explanation:
A proportional relationship goes through the point (4, 10). Explain how to write a function in the form y = mx for this relationship.
Answer:
m = 5 / 2
Step-by-step explanation:
Given
(4, 10)
Here,
x=4 and y=10
Given equation,
y=mx _ equation 1
putting the value of x and y in equation 1. we get,
y = mx
or, 10 = m4
or, 10 / 4 = m
or, 5 / 2 = m
therefore, m = 5 / 2
Carla packs boxes at a rate of 10 boxes every 4 minutes. What is the number of boxes per minute that Carla packs?
show simple work for brainlist
Answer:
2.5 boxes per minute
Step-by-step explanation:
First divide 10 by 4 to get the unit rate 2.5/1.
Second add labels, and figure out conclusion.
2.5 boxes/ 1 minute
Carla packs 2.5 boxes per minute.
Chealsea has 7/8 pound of butter to make icing. Each batch if icing needs 1/4 pound of butter. Write and solve an equation that models the situation. Then interpret the quotient
Answer:
Chelsea can make 3 [tex]\frac{1}{2}[/tex] batches of icing with 7/8 pounds of butter.
Step-by-step explanation:
7/8 ÷ 1/4 (reciprocate 1/4 to replace division sign with multiplication sign)
= 7/8 x 4/1
= 28/8
= 7/2
= 3 [tex]\frac{1}{2}[/tex]
This means that Chelsea can make 3 [tex]\frac{1}{2}[/tex] batches of icing with 7/8 pounds of butter.
I hope this helps :)
Suppose the water level of a river is 34 feet. It recedes 1/2 foot a day. What is the equation you could use to calculate the water for a specific day?
[tex]Answer : 34-\dfrac{1}{2} n \ \ ; \ \ \rm where \ n \ is \ the \ number\ of \ days[/tex]
Answer:
f(x) = -1/2x + 34Step-by-step explanation:
This is a linear relationship.
Using the slope intercept form:
y = mx + bGiven:
The y-intercept is b = 34The slope is m = -1/2The equation is:
f(x) = -1/2x + 34, where x is the number of days