Question

What do I do I need help

Answer 1

Answer:

y = -3x + 8

Step-by-step explanation:

This looks like it's in slope-intercept form.

So, they want you to write it like y=mx+b, where m is the slope and b is the y-intercept.

First, find the slope.

The slope is calculated by using: $\frac{y_2-y_1}{x_2-x_1}$

You have several points. Let's use (1,5) and (2,2)

$y_2$ = 2

$y_1$ = 5

$x_2$ = 2

$x_1$ = 1

$\frac{2-5}{2-1}$ = $\frac{-3}{1}$= -3

The slope (m) is -3.

y = -3x + b

Now, find the y-intercept.

Substitute points in for y and x.

Let's use (1,5) (x,y)

x= 1

y=5

5= -3(1) +b

5 = -3 + b

b = 8

Add b to your equation.

y = -3x + 8