Question

Y must equal something,So solve from Y",This is confusing..

Answer 1

The slope-intercept form of a line:

`y=mx+b`

m - slope

b - y-intercept → (0, b)

The formula of a slope:

`m=(y_2-y_1)/(x_2-x_1)`

We have two points from the graph (-4, -1) and (0, 3) → b = 3.

Substitute:

`m=(3-(-1))/(0-(-4))=(4)/(4)=1`

Answer: y = 1x + 3 → y = x + 3