Write an equation in point-slope form for the line through the given point with the given slope.

Question

(10, –9); m = –2

Answer 1

y = -2 x + b
-9 = -2(10) + b
20 - 9 = b
b = 11
y = -2 x + 11

Answer 2

(10, -9), (x, y), m = -2.
m = (y+9)/(x-10)
y+9 = m(x-10)
y+9 = -2(x-10).