Question

I need help with a slope and y intercept problem

Answer 1

-7=1/2y I have moved the -7 over to the other side of the = and made it positive, but what do I do next?

Answer 2

Hmm. what was the original problem asking you to do or find?

Answer 3

the slope and the y intercept of the line

Answer 4

What information were you given?

Answer 5

-7=1/2y

Answer 6

Hmm.. ok. That's really weird. They want you to find the slope and y-intercept given that the line satisfies -7 = (1/2) y?

Answer 7

yes

Answer 8

is it -7 = (1/2) * y or -7 = 1/(2y)?

Answer 9

-7=1/2y that is all it gives. no ()

Answer 10

Is the y in the numerator or denominator?

Answer 11

it is a fraction with y beside the line

Answer 12

i really appreciate you helping me

Answer 13

oh ok

Answer 14

So that means that y is being multiplied by (1/2), one-half

Answer 15

yes

Answer 16

Ok, that's the same as y being in the numerator, or the top, of the fraction, but it's different than y being in the bottom of the fraction

Answer 17

OK, so how do I clear the fraction or do I?

Answer 18

Anyways, we want to solve for y by itself to get the equation of the line
in “point-slope form”
Solving for y by itself, we see that y = -14, after multiplying both sides by 2.

Answer 19

why by 2 what happened to the fraction

Answer 20

sorry I'm not good with this

Answer 21

Oh ok.

Answer 22

So suppose I said, I have some money in my bank account, and if I gave you half of that, you would have 10 dollars. So how much do I have right now?

Answer 23

5

Answer 24

Not quite.

Answer 25

I didn't give you the money yet.

Answer 26

20

Answer 27

oh

Answer 28

Yeah.

Answer 29

So if I said I have money in my account. If I gave you half, you would have 1000. So how much money do I have?

Answer 30

2000

Answer 31

Exactly

Answer 32

You just solved "(1/2)* y = 1000"

Answer 33

To solve (1/2)*y = -7 for y, it's the same idea

Answer 34

oh ok

Answer 35

if I have +7 and divide by 2?

Answer 36

No, when we solved for y, what did you do to the 1000? You multiplied by 2.

Answer 37

So if (1/2) * y = -7, then to solve for y, we should multiply -7 by 2

Answer 38

makes it -7/2

Answer 39

If I moved the -7 to the other side of the = sign don't that make it +

Answer 40

Well, when we multiply 7 by 2, we get 14. So multiplying -7 by 2 gives us -14.

Answer 41

you lost me

Answer 42

No, that's only if you're adding the -7 to the other side.

Answer 43

I thought that is what I had to do to get y=mx + B

Answer 44

Oh, I can see why you're confused.

Answer 45

If A = B, then B = A.

Answer 46

So if -7 = (1/2) * y, then (1/2) * y = -7.

Answer 47

We didn't "move 7 to the other side of the equation" by adding it, we just rewrote the equation with the y on the left side and the 7 on the right.

Answer 48

?

Answer 49

I thought when you moved it to the other side of the = you had to add or subtract it?

Answer 50

I have to go soon. It looks like you need extra help. I don't think this site is good for you if you need more help one-on-one tutoring.

Answer 51

ok thanks for trying

Answer 52

But does it make sense to you that if A = B then B = A?

Answer 53

yes

Answer 54

What about if A = -7, then -7 = A?

Answer 55

ok

Answer 56

hello every1

Answer 57

cm on chat box

Answer 58

good luck karebear

Answer 59

thanks