Question

Which logarithmic graph can be used to approximate the value of y in the equation 2y = 5? (5 points) The graph of function f of x equals negative log base 2 of x The graph of function f of x equals negative log base 2 of x, plus 3 The graph of function f of x equals log base 2 of x, plus 3 The graph of function f of x equals log base 2 of x

Answer 1

Explanation:

Taking the base 2 log of both sides, we get:

log-base 2 of 2 + log-base 2 of y = log-base 2 of 5, or

2 + log-base 2 of y = approx. 2.3, or

log-base 2 of y = approx 2.3 - 2, or

log-base 2 of y = approx 0.3

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