Make sure you remember to use the distributive property, and enter your x and y values into the equation.
-8( x - 3y)
-8(-2 - 3(-4))
-8(-2) + -8(12)
16 + (-96) (or 16 - 96)
= -80
Hope this helps!
Answer:

Step-by-step explanation:
First we need to find the slope of the line. We can plug in both coordinates in to the slope formula.
The slope formula is:

So I will use (-3,4) as the first coordinate, and (7,-1) as the second coordinate.
x₁ = -3
y₁ = 4
x₂ = 7
y₂= -1
I will plug in these values to find the slope.

Now that we know the slope is -1/2, we can plug in the slope and a point into the point slope equation. Then we can solve for y.

I have attached an image of what this graph should look like. Since the slope is -1/2, the y value should decrease by 1/2 every time you move over by 1 on the x axis. And since the equation says "+5/2" we know we have to shift the graph up by 5/2. The y-intercept will be 5/2.
I added another image that shows how to graph an equation using the equation y=mx+b
Answer: x = 3/2 y = 9/2
Step-by-step explanation:
Subtract
5
y
Replace all occurrences of x
from both sides of the equation.