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omeli [17]
3 years ago
13

The function f(x) = -5x2 + 3 is

Mathematics
1 answer:
asambeis [7]3 years ago
5 0

Answer:

A. -77 < f(x) < -2

Step-by-step explanation:

- 4 < x < -1 so : (-1)² < x² < (-4)² because  f is decrasing if - 4 < x < -1

1< x² < 16.....now multiply by : -5

-80 < - 5x² < -5   add 3  you have : -77< - 5x²+3 < -2

-77 < f(x) < -2

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3 years ago
Read 2 more answers
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