Question

Use point-slope form to write the equation of a line that passes through the point left parenthesis, 20, comma, 17, right parenthesis(20,17) with slope minus, 4−4.

Answer 1

Point-slope form: y - y1 = m(x - x1)

With (x1,y1) = (20,17) and m = -4:

y - 17 = -4(x - 20)

(If you want slope-intercept form: y = -4x + 97.)