Question

PLEASE HEEEELP
Write the equation in slope-intercept form. Then find the slope and y-intercept of each line.
-1/2x - y = 3/4

Answer 1

Slope intercept form is y=mx+b, m being the slope and b the y-intercept.

Answer 2

Thanks, could you help me plug in the equation? @HelpBlahBlahBlah @Kayleedid @linn99123 @SithsAndGiggles @rose21 @paki

Answer 3

@hlambach?

Answer 4

You don't need to plug it it, you just need to isolate y.

Answer 5

Okay how do I do that

Answer 6

So get -1/2x to the other side and you have the answer.

Answer 7

for finding the slope and y-intercept? what about changing the equation to slope intercept form

Answer 8

if you get -1/2x to the other side, it IS in slope-intercept form.

Answer 9

Trust me, just do it. :)

Answer 10

then what will be the slope and y-intercept

Answer 11

isolate y, meaning it should look like y=........

Answer 12

Slope intercept form is y=mx+b, m being the slope and b the y-intercept.

Answer 13

So the number before x will be the slope, and the number added will be the y-intercept. But first, isolate y.

Answer 14

please could you show me the steps? like after putting -1/2x what do i do with it could you show me

Answer 15

OKay, to get anything to the other side, you have to do the opposite. Since it is -1/2x, meaning it is subtracting 1/2x, what is the opposite of subtracting?

Answer 16

adding

Answer 17

so i have to add -1/2x?

Answer 18

Yep, so you ADD 1/2x to both sides.
-1/2x-y=3/4
+1/2x +1/2x
__________________
-1/2x +1/2x equals what?

Answer 19

uhhhh 0?

Answer 20

Yep. But you also add it to the other side of the equal sign, so it would be
-y=1/2x+3/4

Answer 21

Get how I got there?

Answer 22

that is the slope form?

Answer 23

No, because that form is
y=mx+b
the one we have is
-y=1/2x+3/4
You need to get rid of the negative.

Answer 24

oh.. by adding?

Answer 25

This time no. You don't want to get rid of the y, just the negative sign. You want to make y positive.

Answer 26

oh okay so how do we do that

Answer 27

Negative times what equals positive?

Answer 28

umm positive? i dont know

Answer 29

Yep.

Answer 30

okay can you show me

Answer 31

When there is no number in front of a variable, it is understood that it is 1.
Ex: x = 1x
In this case, since it is negative, it is -1. so -y=-1y
Since you are multiplying y by -1, you need to do the opposite, which is divide by -1.
This "/" means divide.
-y = 1/2x+3/4
/-1 /-1
Now you divide everything on the other side by -1.

Answer 32

okay what would be the final result?

Answer 33

Well, what do you think?

Answer 34

um.. i dont know :/

Answer 35

When you divide something by -1, everything becomes a negative.
So:
y=-1/2x-3/4
Get it?

Answer 36

yeah, so that is the slope form?

Answer 37

Yes. Now what is the slope and y intercept?

Answer 38

y intercept would be -1/2x? im not sure

Answer 39

Remember that in slope intercept form, (y=mx+b) m, which is the number before the x, is the slope, and b is the y-intercept.
so in y=-1/2x-3/4

Answer 40

Which numbers are m and b?

Answer 41

-1/2 and -3/4?

Answer 42

Yep!

Answer 43

Thank you! could you please help with another one? please!

Answer 44

I really need help!

Answer 45

SUre, if I can.

Answer 46

Thanks so much, I will tag you in another post so you can get more medals!

Answer 47

Okay, thanks!