Question

write an equation of the line containing the given point and perpendicular to the given line
(7,9);2x+y=3

Answer 1

Do you know how perpendicular lines are related to eachother?

Answer 2

It has to do with their slopes.

Answer 3

yes

Answer 4

How are they related?

Answer 5

that i don't understand how

Answer 6

I will tell you. Their slops are negative reciprocals of eachother.
So if line 1 has a slope \(\frac{a}{b}\) then a perpendicular line 2 would have a slope of \(\frac{-b}{a}\)

Answer 7

So what is the slope of the line you've been given?