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OpenStudy (farmdawgnation):
chirs97, stop reposting this and post your actual question please!
OpenStudy (anonymous):
what is the slope intercept of (2,2)and (-1,5) what the answer
OpenStudy (farmdawgnation):
So have you seen the slope equation? Because that's what you need. :)
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
i just need help to get the answer for my equation that i can up with y=x
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OpenStudy (anonymous):
that was my answer
OpenStudy (anonymous):
y=x
OpenStudy (anonymous):
help me
OpenStudy (farmdawgnation):
No, you're looking for an actual number for this problem.
Ok, so the first place to begin is to figure out the actual slope. The equation for slope-
intercept is:
\[y=mx+b\]
We're looking for the B piece. So, we need to find m (the slope) first. Then we can use the slope-intercept form to find be.
OpenStudy (farmdawgnation):
Have you done any work with finding slopes of lines before?
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OpenStudy (anonymous):
i know that i just need to see if is right
OpenStudy (anonymous):
i got y=x
myininaya (myininaya):
no y=x is not right
OpenStudy (anonymous):
that was my answer
OpenStudy (anonymous):
why is my answer not right did i do something wrong
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myininaya (myininaya):
look at your slope
OpenStudy (anonymous):
ok
myininaya (myininaya):
recalculate that
myininaya (myininaya):
you shouldn't get 1 but you should get the opposite of 1 for your slope
OpenStudy (anonymous):
didnt know that
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myininaya (myininaya):
\[m=\frac{5-2}{-1-2}=\frac{3}{-3}=-1\]
OpenStudy (anonymous):
i got 1 only
OpenStudy (anonymous):
how did u get -1
myininaya (myininaya):
-1-2=-3
myininaya (myininaya):
3/(-3)=-1
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OpenStudy (anonymous):
i did that
myininaya (myininaya):
\[y-y_1=m(x-x_1)\]
\[y-y_1=-1(x-x_1)\]
myininaya (myininaya):
now enter in a point and add y1 on both sides
OpenStudy (anonymous):
now i made something wrong
OpenStudy (anonymous):
so it is y= -1x
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myininaya (myininaya):
\[(x=2,y=2)\]
myininaya (myininaya):
enter in this point
myininaya (myininaya):
\[y-2=-1(x-2)\]
myininaya (myininaya):
\[y-2=-x+2\]
now add 2 on both sides
OpenStudy (anonymous):
did
that
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myininaya (myininaya):
y=-x+2+2
y=-x+4
OpenStudy (anonymous):
that the answer
myininaya (myininaya):
that is slope intercept form
myininaya (myininaya):
where -1 is the slope and (0,4) is the y intercept
OpenStudy (anonymous):
so it is y= -1x
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