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Mathematics 15 Online
OpenStudy (liv1234):

Is anyone good with slopes and lines for algebra?

Mehek (mehek14):

yes

OpenStudy (liv1234):

Can you help me please?(:

OpenStudy (liv1234):

Mehek (mehek14):

do you know the formula?

OpenStudy (liv1234):

I learned it in ninth grade and I really don't remember it, but if you show me it, I'm sure I can remember some of it.

Mehek (mehek14):

\(\bf{\dfrac{y_2-y_1}{x_2-x_1}}\)

OpenStudy (anonymous):

sorry (i know this is annoying) don't have any help to give but love your profile pic and wish you good luck

OpenStudy (liv1234):

I remember the formula, I'm just trying to remember how to put the numbers in. And thanks! (:

OpenStudy (liv1234):

6-2/11-12?

OpenStudy (anonymous):

:)

Mehek (mehek14):

|dw:1443210781657:dw|

OpenStudy (liv1234):

11-12/6-2?

OpenStudy (liv1234):

Would the answer be A? -1/4? And could you help me with a similar one just to make sure I did it right?

Mehek (mehek14):

correct and sure

OpenStudy (liv1234):

Thanks!

Mehek (mehek14):

what did you get?

OpenStudy (liv1234):

I'm putting the numbers into the formula right now to see.

OpenStudy (liv1234):

-1-1/-3-6?

OpenStudy (liv1234):

I think the answer is undefined.

Mehek (mehek14):

-1 - (-1)/ -3 - 6

OpenStudy (liv1234):

0/-9

Mehek (mehek14):

-1 - (-1) = 0 -3 - 6 = -9

OpenStudy (liv1234):

So, is the answer zero?

Mehek (mehek14):

yup undefined = when the denominator = 0

OpenStudy (liv1234):

Thanks! Could you help me with another one?

Mehek (mehek14):

yup

OpenStudy (liv1234):

OpenStudy (liv1234):

Is the formula for slope intercept form "A + B = C"

Mehek (mehek14):

\(\bf{y=mx+b}\) m = slope b = y-intercept

OpenStudy (liv1234):

I'm having trouble deciding what the line goes through :/

Mehek (mehek14):

ok so look at the y-intercept at what point does it cross the y-axis?

OpenStudy (liv1234):

At 2?

Mehek (mehek14):

so b = 2 \(\bf{y=mx+2}\)

Mehek (mehek14):

so either C or D

Mehek (mehek14):

both have the slope 2

Mehek (mehek14):

but 1 is -2 one is 2

OpenStudy (liv1234):

I think it's C because it's in the negative

Mehek (mehek14):

line is going up

OpenStudy (liv1234):

So, D? Because since the line is going up, it has to be in the positives?

Mehek (mehek14):

so postive

Mehek (mehek14):

yes D

OpenStudy (liv1234):

Can you help me with another one? I appreciate your help.

Mehek (mehek14):

ok

OpenStudy (liv1234):

OpenStudy (liv1234):

Mehek (mehek14):

change to y =mx + b \(\bf{y=5x-3}\)

Mehek (mehek14):

y-intercept -3 so A or B

Mehek (mehek14):

positive slope so B

Mehek (mehek14):

I mean A

OpenStudy (liv1234):

So the answer is A? And can you help me with one more, I promise it's the last one.

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