Question

Write an equation in slope intercept form for the line through the two points

(-2,2) and (2,-2).

I know how to find the slope but, how do you find the y-intercept? Please explain!

Answer 1

`m= (y2-y1)/(x2-x1) \\ \\ m= (-2-2)/(2-(-2)) \\ \\ m= (-4)/(4) \\ \\ m=-1`



`y=mx+b \\ \\ y=-1x+b`



`(2)=(-1)(-2)+b \\ \\ 2=2+b \\ \\ 0=b`



`y=-1x+0 \\ \\ y=-x`