Question

Find an equation parallel to x = 9 and passing through (8, -9).

Answer 1

slope will be the same m=9

y -y1 = m(x-x1)

y- -9 = 9(x-8)

y+9 = 9(x-8)

y+9 = 9x -72

subtract 9 from each side

y = 9x -81