Question

Which logarithmic graph can be used to approximate the value of y in the equation 4^y = 5?

The graph of function f of x equals negative log base 4 of x
The graph of function f of x equals negative log base 4 of x, plus 5
The graph of function f of x equals log base 4 of x, plus 5
The graph of function f of x equals log base 4 of x

Answer 1

`4^(y) = 5 log_(4)(4)^(y) = log_(4)(5) y=log_(4)(5) So, the graph of the function should be y=log_(4)(x), or f(x)= log_(4)(x) Correct answer is the last one.`