Find the value of x or y so that the slope equals - 33 (2,-10) and (-1, y)

M = (y2-y1) / (x2-x1)

-33 = (y2 + 10) / (-1 - 2)

-33 = (y2 + 10) / - 3

multiply both sides by - 3

-33 (-3) = [ (y2 + 10) / - 3 ] * - 3

simplify

99 = y2 + 10

99 - 10 = y2

89 = y2

or

y2 = 89

answer:

value of y = 89 so that the slope equals - 33

(2,-10) and (-1,89)