Mathematics
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OpenStudy (liv1234):
Is anyone good with slopes and lines for algebra?
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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.
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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):
:)
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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!
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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
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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?
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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 :/
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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
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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
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Mehek (mehek14):
yes D
OpenStudy (liv1234):
Can you help me with another one? I appreciate your help.
Mehek (mehek14):
ok
OpenStudy (liv1234):
OpenStudy (liv1234):
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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.