2 years ago

Sonia graphs the equations y = -x^2 + 4x and y = x - 4 to solve the equation -x^2 + 4x = x - 4. Her graph is shown below.

Mathematics

1 answer:

sukhopar [10]2 years ago

3 0

-x²+3x+4=0
x²-3x-4=0
(x-4)(x+1)=0
x-4=0
x=4
x-1=0
x=1
C.) -1 and 4

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