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marin [14]
3 years ago
5

PLEASE HELP! Given the function f(x) = 3x2 − 4, what is f(-2)?

Mathematics
1 answer:
EleoNora [17]3 years ago
5 0

Answer: Variant C


Step-by-step explanation:

f(x) = 3x^2 − 4

For finding f(-2) just replace x with - 2 like this:

f(-2)=3*((-2))^2-4=3*4-4=12-4=8

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Height of Sandra that is already mentioned in the question is = 4 feet
Percentage by which Pablo is taller than Sandra = 10%
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Percent by which Michaela is taller than Pablo = 8%
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