Functions Warm-up

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In mathematics, a function is an equation that has only one answer for y for every x. A function assigns exactly one output to each input of a specified type. The quiz below is set u to help you in get a deeper understanding on functions. Give it a try and share your results!

Questions and Answers

1.

Which graph represents a function?
- A.
  
  Option 1
- B.
  
  Option 2
- C.
  
  Option 3
- D.
  
  Option 4
Correct Answer
C. Option 3
2.

If g(x) = x² + 3x - 2, find g(-2).
- A.
  
  -4
- B.
  
  -12
- C.
  
  8
- D.
  
  4
Correct Answer
A. -4
3.

Determine which one of these relations is a function.
- A.
  
  Option 1
- B.
  
  Option 2
- C.
  
  Option 3
- D.
  
  Option 4
Correct Answer
B. Option 2
4.

If f(x)=3x+5, find f(2).
- A.
  
  10
- B.
  
  8
- C.
  
  11
- D.
  
  2f
Correct Answer
C. 11
5.

Make a table showing the cost of buying 1 to 5 CDs if CDs cost $12 each.
- A.
  
  Option 1
- B.
  
  Option 2
- C.
  
  Option 3
- D.
  
  Option 4
Correct Answer
A. Option 1

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

Current Version
May 16, 2018

Quiz Edited by
ProProfs Editorial Team
Oct 01, 2015

Quiz Created by
Jmarkusmath

Functions Warm-up

Which graph represents a function?

If g(x) = x2 + 3x - 2, find g(-2).

Determine which one of these relations is a function.

If f(x)=3x+5, find f(2).

Make a table showing the cost of buying 1 to 5 CDs if CDs cost $12 each.

If g(x) = x² + 3x - 2, find g(-2).