Find the equation of the line perpendicular to x−5y=-19 that passes through the point (3,7).

Answer 1

x - 5y = -19

-5y = - x - 19

y = (1/5)x + 19/5

y = mx + b

m = -5

7 = -5(3) + b

7 = -15 + b

b = 22

y = -5x + 22