Question

What is x when f(x) = 16

Answer 1

Answer:

A

Step-by-step explanation:

$f(x) = y$ (output)

$y = 16\\y = 2^x\\2^x = 16\\2^x = 2^4\\x = 4$

x = number of rounds

y = number of points

In the 4th round, 16 points will be rewarded.