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题目
MATH 1151 AU2025 (18443) Calculus Concept Readiness Assessment (CCR)
单项选择题
Assume that y = log2(8x) for each positive real number x. Which of the following is true?
选项
A.If x doubles, then y triples.
B.If x doubles, then y increases by 1.
C.If x doubles, then y doubles.
D.If x doubles, then y increases by 3.
E.If x doubles, then y increases by 2.
查看解析
标准答案
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思路分析
Consider the given function y = log2(8x) for x > 0.
First, simplify the expression using log properties: y = log2(8) + log2(x) = 3 + log2(x).
Next, analyze what happens when x is replaced by 2x (i.e., x doubles......Login to view full explanation登录即可查看完整答案
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