Question

Choose the equation of the line passing through the point (2, 6) and parallel to y = -3x - 4

y= 3x - 12
y= -3x
y=-3x + 12
y= 3x

Answer 1

Parallel lines have the same slope, do you know the slope?

Answer 2

To be honest, I have NO clue.

Answer 3

y=mx+b where m is the slope

here you have: y = -3x - 4

What do you think the slope ( m ) is?

Answer 4

-3?

Answer 5

Bingo!

Answer 6

Now you have the slope, were you able to find b?

Answer 7

you know the slope all you have to do now is find the y-intercept ( b ) :

y=mx+b , (2, 6) , m=-3
^ ^
x y

Substitute; x by 2, y by 6 , m by -3 and you'll get b


6=-3(2) +b
6=-6 +b
12=b

we got the y-intercept and the slope you can now form an equation :)

y=-3x+12

Answer 8

How did you get 4 ?

Answer 9

I have no idea..

Answer 10

you could cheat on this since it is multiple choice
you already eliminated two choices
now the two choices you have not eliminated plug in (2,6) for both and see which equation holds

Answer 11

or did what aroub did lol

Answer 12

gj aroub

Answer 13

Oh alright, well thank you everyone. It makes more sense now since it was explained like that.