Slope intercept form of (1,1) (2,-2)

Step-by-step explanation:

(1,1) (2,-2)

Y2 = - 2, y1 = 1, x2 = 2, x1 = 1

Slope m = (y2 - y1) / (x2 - x1)

m = (-2 - 1) / (2 - 1)

m = - 3/1

m = - 3

And the equation of line

y - y1 = m (x - x1)

y - 1 = - 3 (x - 1)

y - 1 = - 3x + 3

y = - 3x + 3 + 1

y = - 3x + 4