Question

Consider the line y=-9x+9
Find the equations of the parallel & perpendicular lines that pass through (2,6)

Answer 1

i think parallel is y=-9x+24 & perpendicular is y=1/9x+52/9 is this correct?

Answer 2

The only thing that changes is the y-intercept
y=mx+b
Parallel: Keep the the slope the same
y=-9x+b
The point 2,6 is a solution to that equation so we can plug that in too.
6=-9(2)+b
Now, solve for b.

Perpendicular: slope is opposite reciprocal
so, 1/6 is our slope
y=1/6x+b
Then plug in the stuff that you know which is the point 2,6
6=(1/6)2+b
Solve for b.

Answer 3

can you read my first post? i have the answers.. i just want to know if they are correct!

Answer 4

Parallel is correct.
Perpendicular is not.

Answer 5

hmm

Answer 6

Multiplying (1/6)2 is 1/3
Did you get that?

Answer 7

it wouldnt be 1/6.. it would be 1/9..

Answer 8

sorry, i mean 2*1/6
which is 2/6 simplified to 1/3