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Mathematics 12 Online
OpenStudy (anonymous):

ehre

OpenStudy (anonymous):

OpenStudy (lucaz):

what is the point? I can't see

OpenStudy (anonymous):

-4,3 I think

OpenStudy (anonymous):

@lucaz

OpenStudy (lucaz):

ok

OpenStudy (lucaz):

the point is (-4,2)

OpenStudy (lucaz):

you have two lines y=-x+2 and y=x/4+3

OpenStudy (lucaz):

sorry, I made a mistake

OpenStudy (zpupster):

you plug in the values from the graph we can see the insersection point is (-4,2) so x=-4 y=2 -4+ 2 = ?? this = -2 so we know answers b and d are eliminated because those solutions are 2 lets plug are x and y values in the second equation of A and C A -4 + 4(2) = 12 true? C -4 - 4(2) = -12 true??

OpenStudy (anonymous):

C

OpenStudy (zpupster):

good job!!

OpenStudy (lucaz):

better now =P

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