Praxis I Math: Functions Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Using the graph, find f(f(-2)).

Question 2 2. If f(x) = -2x -5 and g(x) = x^2 + 1, find f(g(x)).

Question 3 3. The graph of y = (1 + x)^2 will lie in which quadrants?

Question 4 4.

Solve for x and y.

x + y = 5

x - y = -1

Question 5 5. What is the range of the function represented by the graph below?

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Question 6 6.

Solve for x and y.

x - 3y = -1

2x - 2y = 2

Question 7 7. Which of the following statements best describes the 'composite' of two functions?

Question 8 8.

Find the inverse of the following function:

f(x) = 2x + 1

Question 9 9.

Which graph represents this piecewise function?

f(x) = 2x, x < 1

f(x) = x² - 1, x ≥ 1

Question 10 10.

Use f(x) and g(x) to find g(x) - f(x).

Here, f(x) = -x + 5 and g(x) = 3x + 2.

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Question 11 11. Use the graph to find f(f(2)).

Question 12 12.

Find the domain of f(f(x)) if

f(x) = (x+1)/x

Question 13 13. Which of the following is written in function notation?

Question 14 14.

Find the domain of f(g(x)), if:

f(x) = 1/x

g(x) = 1/(x+4)

Question 15 15. If f(x) = -2x - 5 and g(x) = x^2 + 1, find f(f(x)).

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Question 16 16. All of the following are piecewise functions, EXCEPT:

Question 17 17. What is the range of the function: g(x) = |x| + 1

Question 18 18. Which of the following is a point on the function y = 3x - 2?

Question 19 19. What is the most common piecewise function?

Question 20 20. What is the domain of the function below?

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Question 21 21. The collection of all the outputs of a function is known as which one of the following?

Question 22 22. Which one of these functions has a domain of all real numbers?

Question 23 23. Given the function below, evaluate g(7).

Question 24 24. Which piecewise function is represented by this graph?

Question 25 25. The graph of y = x - 2 will pass through which quadrants?

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Question 26 26. Which equation is NOT equivalent to 2x + 4y = 6?

Question 27 27.

Find the domain of the inverse function of:

f(x) = 1/(x-3)

Question 28 28.

Find the domain of f(x) + g(x) if

f(x) = 2x and

g(x) = sqrt (x+ 5).

Question 29 29.

Use f(x) and g(x) to find f(x) * g(x).

f(x) = -x + 5 and g(x) = 3x + 2

Question 30 30. Recalling function notation, we want x to be w. Therefore, if f(x) = (3x + 5) / 2, find f(w).

Praxis I Math: Functions Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Praxis Core Academic Skills for Educators - Mathematics (5732): Study Guide & Practice  /  Math Courses
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