Find the Domain and Range log base 2 of x
Problem
Solution
Identify the restriction for the logarithmic function. The argument of a logarithm must be strictly greater than zero.
Determine the domain by setting the argument
x>0 In interval notation, this is(0,∞) Analyze the behavior of the function to find the range. As
x approaches0 from the right,(log_2)(x) approaches−∞ Asx approaches∞ (log_2)(x) approaches∞ Conclude that the function takes on all real values, meaning the range is
(−∞,∞)
Final Answer
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