Topic 6: ACT Mathematics: Preparing For Higher Math

Lesson 6.3: Functions — Quiz

Test your understanding of lesson 6.3: functions with 5 practice questions.

Practice Questions

Question 1

What is the domain of the function $f(x) = \sqrt{x-4}$?

Question 2

If $f(x) = 2x + 3$, what is $f(5)$?

Question 3

Which transformation occurs if the function $f(x) = x^2$ is changed to $g(x) = x^2 + 4$?

Question 4

What is the range of the function $h(x) = -x^2 + 1$?

Question 5

Which of the following is a polynomial function?