CPM Homework Help : PC3 Problem 6-136

Graph $l(x)=2\log_5(x)-1$ .

Step 1:

Rewrite the function in exponential form.

$y+1=2\log_5(x)$
$\frac{y+1}{2}=\log_5(x)$
$5^{(y+1)/2}=x$

Step 2:

Copy and complete a table like the one below.
Then plot the points to graph the function.