Question

How do I find the equation for the graph?

Answer 1

Use two of the points

Explanation:

use the equation y=mx+b and plug the numbers in

Let’s use (1,0)

0 = -4x1+b (multiply)

0=-4+b (bring the three on the other side)

-4= b

Y= -4x-4

To find slope use 2 points on the graph and do
`(Y2-Y1)/(X2-X1)`

Which means points 1 and points 2

Let’s use (1,0) y1 x1 and (0,-4) y2 x2

`(-4-0)/(0-1)`= -4

Boom

Answer 2

Domain is all the x values which return a y value.

Range is all the y values that can be returned from any given x.

For example, y=x^2 has a domain of all real numbers because any number can be squared and get another number, however it has a range of y>=0 because no matter what x no value under 0 can be returned.

Explanation:

hope this helps:)