Answer:
a: 4.12310563
b: 15.5563492
c: 17.8885438
x - 4 = 0 and x - 2 = 0
Step-by-step explanation:
$y=(7/2)x+20$
SInce the gradient of the first line is $-2/7$ then the gradien of the perpendicular line is $7/2$.
Therefore by the point slope formula the line that we are looking for is
$y-6=(7/2)(x+4)$
$y=(7/2)x + 20$
