9. SHOW FULL STEPS. Solve for f(-4) and f(7) of the function belowf(x)=7-2x-3x²

Mathematics

1 answer:

qwelly [4]2 years ago

8 0

Answer:

f(-4) = 33

f(7) = -154

Step-by-step explanation:

In this question, you will solve the function by plugging in the given value.

Solve:

f(-4) = 7 - 2(-4) -3(-4)²

= 7 - 2(-4) - 48

= 7 + 8 - 48

= 7 - 40

f(-4) = 33

----------------------------------

f(7) = 7 - 2(7) -3(7)²

= 7 - 2(7) - 147

= 7 - 14 - 147

= 7 - 161

f(7) = -154

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