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

D. 32

Step-by-step explanation:

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

 ⇒  

Thus, the answer is D. 32.

Hope this helps!

D. 32

Step-by-step explanation:

f(-9) = ⅓(-9)² + 5

⅓(81) + 5

27 + 5

32

594 square inches

step-by-step explanation:

vote !

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.