Mathematics
8 Online
OpenStudy (thats_kyy):
Which equation best models the relationship between x and y?
y = −5x + 40
y = −40x + 280
y = −40x + 200
y = −5x + 200
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OpenStudy (thats_kyy):
OpenStudy (anonymous):
For this one, you need to use the equation y = mx + b
OpenStudy (anonymous):
where m is the slope and b is the y-intercept
sammixboo (sammixboo):
Do you know how to find the slope and y-intercept?
OpenStudy (thats_kyy):
Okay So Now I Know It Has To be C or D For Sure
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sammixboo (sammixboo):
Why so?
OpenStudy (anonymous):
that's right
OpenStudy (anonymous):
now we need to find the slope
OpenStudy (anonymous):
so pick 2 points
OpenStudy (thats_kyy):
I Know It Its C!
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OpenStudy (thats_kyy):
Right @10115658
OpenStudy (anonymous):
yep
OpenStudy (thats_kyy):
Yessssss
OpenStudy (anonymous):
anymore questions?
OpenStudy (thats_kyy):
yea this one
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OpenStudy (thats_kyy):
OpenStudy (anonymous):
kk
OpenStudy (anonymous):
I recommend putting the graph in y = mx + b form first
OpenStudy (thats_kyy):
okay
OpenStudy (thats_kyy):
Itll Be 60
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OpenStudy (anonymous):
k give me a sec
OpenStudy (dan815):
y = −40x + 200
OpenStudy (thats_kyy):
@dan815 What You Talking About Lol
OpenStudy (thats_kyy):
@jim_thompson5910
OpenStudy (anonymous):
yep that's what i got
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OpenStudy (thats_kyy):
yesss
OpenStudy (anonymous):
I think he's talking about the previous question
OpenStudy (thats_kyy):
ugh thank youuu
OpenStudy (thats_kyy):
yea maybe
OpenStudy (dan815):
oh uh table is increasing 25 every x value right
and graph is increasing 60 every 2 x values so 30 every y value
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OpenStudy (dan815):
on the table what is y when x=12 ?
OpenStudy (thats_kyy):
480
OpenStudy (dan815):
no not 480 try again
OpenStudy (dan815):
notice the x values are going up by 2 every time for every 60
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OpenStudy (dan815):
so you will add 60 only twice, so the graph will be at 240+60+60=360
OpenStudy (dan815):
can you tell me what the table will be now