Answer:
c
Step-by-step explanation:
For Perpendicular lines:
m1×m2 = - 1
(m1 & m2 are the gradients of the lines)
Since line q has a gradient of 5/4,
m2 would be -4/5
y-y1 = -⅘(x-x1)
When x = 6, y = -7
y-(-7) = -⅘(x-6)
y+7 = -⅘(x-6)
