Question

Write the equation of the line that passes through (–4, 3) and is perpendicular to the line y=7/5x -3/5?

A.
5x + 7y = 1
B.
7x + 5y = –13
C.
7x + 5y = –1
D.
3x + 5y = 7

Answer 1

What is the slope of the line your equation is perpendicular to?

Answer 2

hint
perpendicular line need to have a slope that is reciprocal with opposite sign than the original slope
for ex if the original slope was 3 the the perpendicular slope would be -1/3

Answer 3

m (slope of the line given)
m1 (slope of the line perpendicular)
m.m1= -1 (you can find m1 from here)
now equation of the required line becomes y=m1x+c
to find c plug in the values of (x,y) ie the point through which it passes

Answer 4

@Zale101

Answer 5

find the reciprocal of the slope 7/5