Question

Emilio practices the piano 20 minutes a day. To identify the total number of minutes he practices, he uses the function rule:y = 20x.Find f (8)A.28B.40C.80D.160

Answer 1

Assuming function f(x) is the function that follows the rule y = 20x, we have:

$\begin{gathered} f(x)=20x \\ f(8)=20\cdot8 \\ f(8)=160 \end{gathered}$

So, the answer is 160.