Question

Mariana, a teacher's assistant, is grading quizzes. The function f(x) gives the number of quizzes she can grade in x minutes.
What does f(30)=15 tell you?

Answer 1

The notation f(30) = 15 means that when Mariana spends 30 minutes grading quizzes, she is able to grade a total of 15 quizzes during that time. In other words, the function \( f(x) \) represents a relationship between the time spent grading (in minutes) and the number of quizzes graded. So, this specific output indicates her grading efficiency at that time interval.