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Mathematics 18 Online
OpenStudy (anonymous):

medal to correct answer with explanation

OpenStudy (anonymous):

OpenStudy (anonymous):

Since they gave you the slope, All you need is the y intercept

OpenStudy (anonymous):

\[y=-x+b\] plug in the point for x and y then solve for b.

OpenStudy (anonymous):

\[b=y+x\] \[b=-1+-10=-11\]

OpenStudy (anonymous):

You shouldn't go about that way, considering that they gave you the slope and a point and the answers are in "point-slope form" btw it would just be easier to plug the values in for that @donny471

OpenStudy (anonymous):

\[\Large y-y1=m(x-x1)\]

OpenStudy (anonymous):

Yea, but who can remember that formula? Besides this kind of calisthenics is more useful in the long run

OpenStudy (anonymous):

(-10,-1)=(x1,y1) and m=-1

OpenStudy (anonymous):

Besides where do you think they got that formula from?

OpenStudy (anonymous):

Ax+By=C

OpenStudy (anonymous):

it's so confusing

OpenStudy (anonymous):

So now that you have the slope and the y intercept, you can put it into slope intercept form?

OpenStudy (anonymous):

Hmm, not sure, it's useful to know both but y=mx+b is a lot easier to work with not as much stuff and the point-slope always changes into the slope intercept, idk i was just looking for the way to answer using the answer choices.

OpenStudy (anonymous):

i came up with d

OpenStudy (anonymous):

Yea, d is correct.

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