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How do I know what numbers to assign to y and x?

so this is what it will look like once you plug the points in:
\[\frac{ (3) - (-1) }{ (2)-(0) }\]

So, (0, -1) and (2, 3) would look like this with their appropriate values: (x, -y) and (x, y) right?

so go ahead and solve for the slope (m) and tell me what you get

But, the example of the order of my values(in my last comment) are correct, right?

yes you are correct = )

Ah! Thank you. I'll try to solve the problem. One minute (:

now that is only part of it, there is another equation to arrive to the final equation

once you find the slope I can tell you the next part = )

your numerator is correct double check your denominator (2-0) = ?

Pff... Sorry. I mixed my numbers up >.<

no apologies = ) I was just on here earlier getting help and I did the same thing lol ; D

Essentially it comes out to \[\frac{ 2 }{ 1 }\]

lol I guess we all make mistakes haha! It's how we learn.

correct = ) so that is your "m" or slope

yay! Alright, so that should be written out like so: \[y =2x +b\]

And b is the 'base', right?

I can't remember if it is called the base but that will be your y-intercept once you graph it

Sorry. Someone had to use my laptop.

that's ok = )

Ok, I'm going to solve that. One minute (:

Wait... Do I NEED the parenthesis around the numbers? Or does it not really change anything?

OH! I remember now!

Well... that part at least

|dw:1359321905435:dw|

And then that would turn into \[y =2x-12\] right?

No wait.... Ugh! I think that's wrong actually.

lol Yeah, I loved the Illustration haha!

no look at it this way:
\[y= 2x+(-4) +3\]
\[y=2x +(-1) \]
\[y=2x-1\]
Does that make sense? = D

|dw:1359322373754:dw|

Trying to rework the problem so I can better understand it...

(2 x X)=2x
(2 x 2)=4
y=2x ???????????? I can't figure out how you got the -4

I'm a brunette lmfao

It's the 2x+(-4) part that gets me

lawl xD

|dw:1359322879897:dw|

this is the way you're used to right?

Yeah

ok here we go lol

|dw:1359322994943:dw|

|dw:1359323398039:dw|

Ohhh so that's what you did +(-4), right?

Ok so we have:
|dw:1359323569725:dw||dw:1359323806202:dw|

yes correct! = D

Correction: \[y =2x +1\]
Sorry

Do you feel confident that you can do another one by yourself?

I would like to try (: So, shoot! Let's see if I can do this.

And I had to repeat Pre-Algebra once, went on to Algebra 1, and didn't do too well there.

Ok! And you're 50,000,000 times smarter than me haha!

While you're doing that, I'm going to take a super fast shower. Like... 5-10 minutes.

ok when you get back I will have the equation already up = )

Ok (: Be back soon!

What is the equation of a line that passes through points (-1,6) and (3,-2)?

Back! I'll figure that out real quick.

kk = )

So, I want to figure out y+mx+b
right?

Correction: y=mx+b

correction: \[m=\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\]

Ok, so does that second formula come from somewhere or do you have to remember it? lol

you have to remember those

it sucks bc there is so much memorization in math = (

Yeahhhhh lol >.<

just memory bc they give you the formula in class

Uhhhhhhhhhhhhhhhhhhhhhhhhhh..... Ok here goes >.<\[y =2x -1\]

what did you get for the slope?

Where's my Fail Whale when I need it? xD

= )

m=2

ok that's probably where it went wrong

so how did you set it up? which set of points did you put first?

We have to be fast though. I have to leave for work in 15 minutes o.o

I'll be sure of it = )

This is hard. One sec.

|dw:1359326845829:dw|

|dw:1359326969637:dw|

I see what you did you put the values in the wrong locations

Ahhhhhhhhhhhhhhhh! I feel dumb haha! Help me with that please?

ok you have the points: (-1,6) and (3,-2)
|dw:1359327131329:dw|

that's supposed to be a 2 at the end of that second y (subscript)

Oops.... Blonde moment? Or just blind? xD

|dw:1359327213071:dw|

y1 and x1 are the same set is what that says lol like I said we all have 'em lol

just as I did here
|dw:1359327396584:dw|

I did that too lol

Did you re-work it out?

If you have to leave for work I'll post how to do the full equation and the answer at the end = )

lol kk = )

m=-2

Ya? lol

yes! = D

YES! Ok, let me solve the rest ;D

lol kk

Or try haha! I hope this is right.

I'm sure you got it = )

I uh.... I'm doubtful, but here goes o.o
y=-2x-5 -_-

very extremely close which points did you plug in?

OH! When I brought over the -6, I left it as -6 and didn't switch it to 6

y=2x+7 ??????????????????

take a deep breath you're using (-1,6) right?

= )

Yeah I am lol

|dw:1359328160642:dw|

\[-2x+4=y\]

Have a good day at work = )

SORRY! My laptop actually overheated. I was also kind of late to work ^^;