Mark (√) against the correct answer in the following: The range of – InterviewSolution

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1.

Mark (√) against the correct answer in the following: The range of f(x) = ax , where a > 0 is A. [ - ∞, 0] B. [ - ∞, 0) C. [0, ∞) D. (0, ∞)

Answer»

Correct Answer is (D) (0, ∞)

f(x) = a^x

when x < 0

0 < a^x < 1

When x ≥ 0

a^x> 0

Therefore range of f(x) = a^x = (0, ∞)

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