2 years ago

If f(x) varies directly with x2, and f(x) = 96 when x = 4, find the value of f(2).

2 answers:

6 0

F ( x ) = k * x²
f ( 4 ) = 96
96 = k * 4²
96 = 16 k
k = 96 : 16
k = 6
f ( 2 ) = 6 * 2² = 6 * 4 = 24
Answer: D ) 24

3 0

Answer: I just took the test and the answer was 24.

Step-by-step explanation:

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