Question 911277
perpendicular to y = ( -7/8)x + 3/8

New Line: m = 8/7
***Using point-slope form, {{{y - y[1] = m(x - x[1])}}}P(9,-7)
y + 7 = (8/7)(x-9)
y = (8/7)x - 72/7 - 49/7
y = (8/7)x- 121/7
0r
8x-7y = 121 in Standard Form