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4 years ago

If f(x) = 1/3x^2 + 5, find f(-9). A. 248 B. -22 C. 11 D. 32

Mathematics

2 answers:

melamori03 [73]4 years ago

7 0

Answer:

D. 32

Step-by-step explanation:

For this problem, we simply plug -9 in for x in f(x):

$f(x)=\frac{1}{3} x^2+5$ ⇒ $f(9)=\frac{1}{3} *(9^2)+5=\frac{1}{3} *81+5=27+5=32$

Thus, the answer is D. 32.

Hope this helps!

anygoal [31]4 years ago

3 0

Answer:

D. 32

Step-by-step explanation:

f(-9) = ⅓(-9)² + 5

⅓(81) + 5

27 + 5

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the graph is attached below

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4 years ago