Answer:
x-intercept = 10
y-intercept = -8
Step-by-step explanation:
To identify the y-intercept, we will need to format the equation in the form 
. We can start by subtracting 
from both sides of the equation:
Divide both sides of the equation by the coefficient of 
, which is 
:
The 
is representative of the y-intercept in .
Identify in the equation :
Therefore, our y-intercept is -8.
To solve for the x-intercept, replace the in the equation with a zero:
Add 
to both sides of the equation:
You can go ahead and divide 
by to get rid of the fraction:
Divide both sides of the equation by the coefficient of 
, which is 
:
Therefore, our x-intercept is 10.
Answer:
-18
Step-by-step explanation:
-18
Use the equation of -b/2a, so if you have a line you can just plug in the numbers.
Answer:
x=10
Step-by-step explanation:
The two triangles are similar since each triangle is the same shape of right triangle but different sizes. To find x, write a proportion between two equal ratios of side lengths.
Solve by cross multiplying.
28(3x) = 20(4x+2)
84x = 80x + 40
4x = 40
x=10
Answer:
x = 24
Step-by-step explanation:
y₂ - y₁
42 - 21 = 21
x + 21
3 + 21 = 24
So when y increases by 21, so does x.
x = 24
