Can someone please help me? I don't know how to do it, and I would really like it if someone could show me the steps on how to answer it.
. Find the slope-intercept form of the equation that goes through these two points.
(1,20) and (8,4.5)
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OpenStudy (misty1212):
HI!!
OpenStudy (misty1212):
you have to find the slope first
OpenStudy (misty1212):
\[m=\frac{y_2-y_1}{x_2-x_1}\] put \[x_1=1,x+2=8,y_1=20,y_2=4.5\] and compute that fraction
OpenStudy (misty1212):
ooops i means \(x_2=8\)
OpenStudy (abbycross167):
so x2=8 not x+2=8?
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OpenStudy (misty1212):
yes
OpenStudy (misty1212):
you should have \[\frac{4.5-20}{8-1}\]
OpenStudy (abbycross167):
ok awesome, sorry if I don't reply fast but I'm writing down the steps
OpenStudy (abbycross167):
may I ask what comes next?
OpenStudy (igreen):
Just simplify what she gave you.
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OpenStudy (igreen):
\(\sf \dfrac{4.5-20}{8-1}\)
OpenStudy (abbycross167):
-15.5
7
or
15.5
7?
OpenStudy (benlindquist):
keep the 4.5 - 20 = on the top
OpenStudy (benlindquist):
8 -1 = on the bottom
OpenStudy (igreen):
The first one is correct.
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OpenStudy (igreen):
4.5 - 20 will give you a negative number, not a positive.
OpenStudy (benlindquist):
cause u subtract smaller to larger
OpenStudy (abbycross167):
ok then do I divide -15.5 by 7?
OpenStudy (benlindquist):
yes
OpenStudy (abbycross167):
-15.5/7=
-2.21428571429?
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OpenStudy (benlindquist):
round
OpenStudy (igreen):
Yes, that's correct.
OpenStudy (igreen):
Depending on your answers, you probably have to round.
OpenStudy (abbycross167):
-2.21?
OpenStudy (benlindquist):
-2.2
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OpenStudy (abbycross167):
oh ok
OpenStudy (abbycross167):
is that the answer to the question?
OpenStudy (benlindquist):
yes
OpenStudy (abbycross167):
ok great! thank y'all soooo much!! it really helps!!