Help me understand this please!!!!!!!!!!!!!!!!!!!

asked Jun 2, 2023 145k views

5 votes

by Mzzl

3.8k points

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7 votes

Answer:

f(- 5) = 23

Explanation:

substitute x = - 5 into f(x)

f(- 5) = - (- 5)² - 8(- 5) + 8 = - 25 + 40 + 8 = - 25 + 48 = 23

Sindy answered Jun 4, 2023

by Sindy

3.4k points

4 votes

Answer: f(-5)=7

Explanation:

$f(x)=-x^2-8x-8\\\\f(-5)=-(-5)^2-8*(-5)-8\\\\f(-5)=-25+40-8\\\\f(-5)=7$

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