Question

Using the graph of f(x) = log10x below, approximate the value of y in the equation 10y = 5.

Answer 1

Presuming it's 10^y = 5 not 10y = 5

Anyway, our graph is y = log_10(x)
raising both sides to base 10 gives us

10^y = x

now, comparing this to 10^y = 5, this simply means you need to find the value of y when x = 5