i do not know how to solve this

Question

Line ℓ passes through (-2, 5) and (4, -7). Write an equation for the line that passes through (2, 9) and is perpendicular

to line ℓ. Leave in slope-intercept form.

Answer 1

(1) Calculate the slope, m, between the points (-2, 5) and (4, -7).

(2) (y - 9) / (x - 2) = -1 / m