Question

Mr. Shaw graphs the function f(x) = –5x + 2 for his class. The line contains the point (-2, 12). What is the point-slope form of the equation of the line he graphed?

y – 12 = –5(x + 2)
y – 12 = 2(x + 2)
y + 12 = 2(x – 2)

Answer 1

Use point-slope: y - y1 = m(x - x1) with m = -5 and (x1,y1)=(-2,12):

y - 12 = -5(x - (-2)) = -5(x + 2).

So the correct choice is: y – 12 = –5(x + 2).