Question

Find the slope and y intercept
7-1/2y=2x

Answer 1

Do you know of a form of equations where you can easily get the slope?

Answer 2

do you mean y=mx+b

Answer 3

RIght.

Answer 4

So if we can solve the above equation for y, then we might be closer to getting the slope and y-intercept, right? Can you solve the equation for y?

Answer 5

Well I do know that you take 7 and subtract that from both sides geting -1/2y=2x-7 right?

Answer 6

Exactly, that's the first step.

Answer 7

okay then after that im confused

Answer 8

well 2 would be the slope right?

Answer 9

So then you need to get the y alone.

That means you have to get rid of the -1/2 that's next to it.

Answer 10

okay so 1/2+ -7 = 3.5

Answer 11

Close. Because y is multiplied by the -1/2, we have to divide both sides by -1/2.

Answer 12

Dividing by -1/2 is the same as multiplying by -2.

Answer 13

oh thats where i always mess up

Answer 14

So we would have:

-2(-1/2y) = -2(2x - 7)

Answer 15

-4x+14

Answer 16

Exactly :)

Answer 17

So now what's the slope?

Answer 18

YAY haha the slope would be -4

Answer 19

Right! And the y-intercept?

Answer 20

14

Answer 21

Rock it :)

Answer 22

Ok, so now let's look at your other question and see if we can apply the same idea.

Answer 23

okay sounds good

Answer 24

(-2,8); 7x=5y+6

Answer 25

Well, hehe, I was going to actually go to that problem, so we keep things organized :)

Answer 26

o okay ill head over to it sorry