Question 1002617
Hi there,
Lines that are perpendicular to
one another have slopes that multiply
together to give -1
m1 x m2 = -1
y = 5x – 7 has a slope = 5
5 x m2 = -1
m2 = -1/5
Using Line Equation:
y - b = m(x - a)
m = -1/5 and (a,b) = (-10,3)
y - 3 = -1/5(x - (-10))
y - 3 = -1/5(x + 10)
y - 3 = -1/5x - 2
y = -1/5x - 2 + 3
y = -1/5x + 1    
Hope this helps :-)