4 years ago

Which graph shows the solution to the following system y=1\4x-2 y=7\4x+4

1 answer:

6 0

Solve
y=1/4x-2
y=7/4x+4
since both equal y, set equalto each other
1/4x-2=7/4x+4
minus 1/4x from both sides
-2=6/4x+4
minus 4 from both sides
-6=6/4x
times 4 both sides
-24=6x
divide by 6
-4=x
sub back
y=1/4x-2
y=1/4(-4)-2
y=-1-2
y=-3
(-4,-3) is soluiton
starting at center go left 4 units and down 3 units
B is answer

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