Which point is represented on the line represented by the equation y+4 =-5(x-3)?
A. (-4,-5)
B. (-5,-4)
C. (3,-4)
D. (-3,4)
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OpenStudy (serenity74):
Make x = 0 and solve for y
Then make y = 0 and solve for X. and then u get the coordinates.
OpenStudy (anonymous):
oh ok thnx.
OpenStudy (serenity74):
no problem :)
OpenStudy (serenity74):
did u get it?
OpenStudy (anonymous):
no.
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OpenStudy (anonymous):
could u explain some more?
OpenStudy (serenity74):
Ohhh you didn't simplify it! That's why!
OpenStudy (anonymous):
I don't even think I got it correct.
OpenStudy (anonymous):
y+4=-5(0-3)
y+4=15 is what i got but i dont know what to do after that
OpenStudy (serenity74):
Distribute it out and then make x=0 and y=0.
I will give you an example.
y+3 = 2(x-1) (distribute it)
y+3=2x-2 (you then isolate the y)
y = 2x-2+3 (then add up like terms)
y = 2x +1 (after you get this in order to get the y value u make x=0)
y = 2(0) + 1 = 1
y = 1 (in order to get the x value u make y = 0)
0 = 2x +1
-1 = 2x (then divide the two on both sides in order to isolate the x
-1/2 = x
and bam you get
(-1/2, 1)
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OpenStudy (serenity74):
Do u get it now?
OpenStudy (anonymous):
um its y+4 not y+3
OpenStudy (serenity74):
IK lol I gave you an example lol
OpenStudy (anonymous):
oh lol sorry
OpenStudy (anonymous):
okay let me try to do it.
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OpenStudy (anonymous):
on the second line where u put y+3=2x-2 is that correct or is the 2 supposed to be a one?