Question

ks to an online typing course, christine has become a much faster typist. the function gives how many words she can type in x seconds.
what does f(45) = 68 tell you?
christine can type 45 words in 68 seconds.
christine can type 68 words in 45 seconds.

Explanation:

Step1: Understand Function Notation

In a function \( f(x) \), \( x \) is the input (here, seconds) and \( f(x) \) is the output (here, words typed).

Step2: Interpret \( f(45) = 68 \)

For \( f(45)=68 \), the input \( x = 45 \) (seconds) and the output \( f(45)=68 \) (words). So it means in 45 seconds, Christine types 68 words.

Answer:

Christine can type 68 words in 45 seconds.