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17 September, 17:29

Graph the functions on the same coordinate plane.

f (x) = x^2+2x-8

g (x) = - x^2+4

What are the solutions to the equation f (x) = g (x) ?

Select each correct answer.

-3

-2

0

1

2

+2
Answers (1)
  1. 17 September, 19:32
    0
    select - 3 and 2

    Step-by-step explanation:

    f (x) = g (x) means set them equal and solve for x

    x^2+2x-8=-x^2+4

    Add x^2 on both sides and subtract 4 on both sides.

    2x^2+2x-12=0

    Divide both sides by 2

    x^2+x-6=0

    Think of two numbers that multiply to be - 6 and add up to be 1

    that is 3 and - 2

    so The factored form is (x+3) (x-2) = 0

    So x=-3 or x=2
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