Question

what is the slope of a perpendicular to x-3y=4 ?

Answer 1

can you try to find the slope of x-3y=4 first ?

Answer 2

isolate 'y'

Answer 3

start by adding 3y on both sides...

Answer 4

x=4+3y

Answer 5

yes
so
3y = x-4
divide both sides by 3

Answer 6

y=x-4/3

Answer 7

No divide everything by 3

Answer 8

y = (x-4)/3

y= x/3 -4/3

compare this with y = mx+c
what u get for m ?

Answer 9

I'm confused a little bit

Answer 10

So you will get y= 1/3x -4/3

Slope is 1/3

But you need it perpendicular to that slope so flip it over and multiply the slope by -1

So you will get -3

Answer 11

Perpendicular= flipping it over and multiplying by -1

Parallel=same slope

Answer 12

thank you both very much :D

Answer 13

No problem ask me anytime! I'm good with Trigonometry and/or Algebra :)