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3 years ago

8

F(x) =- (3x +9) – 13 find f(-5)

1 answer:

belka [17]3 years ago

8 0

$f(x) = -(3x + 9) - 13\\f(-5) = -(3 \cdot (-5) + 9) - 13\\= -(-15 + 9) - 13\\= -(-6) - 13\\= 6 - 13\\= - 7$

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