Question

Use point-slope form to write the equation of a line that passes through the point (2,7) with slope −4.

Answer 1

y = -4x + 15

Explanation:

y = mx + b

y = -4x + b

Find b using point-slope form (y-y1) = m(x-x1) and (2,7) as the point:

(y-7) = -4(x-2)

y-7 = -4x + 8

y = -4x + 15