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Question

Mathematics Question on Increasing and Decreasing Functions

The interval in which the function f(x)=10−6x−2x2f(x) = 10-6x-2x² is decreasing is:

A

(−32,32)(\frac{-3}{2},\frac{3}{2})

B

(−∞,−32)(-∞,\frac{-3}{2})

C

(−32,∞)(\frac{-3}{2},∞)

D

(−∞,32)(-∞,\frac{3}{2})

Answer

(−32,∞)(\frac{-3}{2},∞)

Explanation

Solution

The correct option is (C):(−32,∞)(\frac{-3}{2},∞)