How many solutions are there to the following system of equations?
4x-8y=0
-3x+8y=-7
A.INFINITELY MANY
B.2
C.1<--I THINK
D.0
ANYONE PLEASE HELP WILL GIVE MEDAL THANKS
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OpenStudy (anonymous):
@E>Nattie12345
OpenStudy (anonymous):
@IAMBATMAN
OpenStudy (anonymous):
@E>Nattie12345
OpenStudy (anonymous):
@pooja195
OpenStudy (anonymous):
@mar
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OpenStudy (anonymous):
anyone please
OpenStudy (anonymous):
@Luigi0210
OpenStudy (anonymous):
@Directrix
OpenStudy (anonymous):
help please
OpenStudy (anonymous):
@pooja195
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OpenStudy (anonymous):
@PookieBear555
Directrix (directrix):
If you use the Addition method:
4x-8y=0
-3x+8y=-7
-----------
x + 0 = -7
x = -7
You can find the y by substitution of -7 for x in either equation.
OpenStudy (anonymous):
im sorry so is it 0 solutions
OpenStudy (anonymous):
@Directrix
Directrix (directrix):
So, which of these does that indicate:
A.INFINITELY MANY B.2 C.1<--I THINK D.0
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Directrix (directrix):
If cannot be 0 solutions because we got a solution with x value -7
OpenStudy (anonymous):
so im right :,)
Directrix (directrix):
Correct. One solution.
OpenStudy (anonymous):
i goingt ot give you a medal for being nice
Directrix (directrix):
Thank you.
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OpenStudy (anonymous):
no problem can you help me on some more please
Directrix (directrix):
I will try. Close this thread and post the next question in a new thread.
OpenStudy (anonymous):
hold on im writing the problem down so i could type it in