What is f(-3) for the function f(a)=-2a^2-5a+4

asked Feb 14, 2019 177k views

1 vote

by Tth

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7 votes

Replace every instance of "a" with "-3:"

f(-3) = -2(-3)^2 - 5(-3) + 4 = -18 + 15 + 4 = 19 - 18 = 1 (answer)

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