write an equation through (15,1) perpendicular to 5x-y=9

Question

i want to know how to find and make an equation perpendicular or parallel

Answer 1

1. find slope of the line whose equation is given

2. the slope of your new ⊥ line will be the negative reciprocal of the above.

3.now use point slope form.

 

for a line parallel to another, simply use the same slope for each.