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Relations and Functions #2
  • 1. A relation is a set of _____________.
A) y-values
B) x-values
C) functions
D) ordered pairs
  • 2. Domain is a list of all of the ____ values of a relation or function.
A) x
B) z
C) y
  • 3. Range is a list of all of the ____ values of a relation or function.
A) x
B) z
C) y
  • 4. What is the domain of this function: {(0, 1), (2, 3), (-1, 3), (4, 5)}?
A) {1, 3, 5}
B) {0, 2}
C) {0, 2, -1, 4}
D) {3}
  • 5. What is the range of this function: {(4, 8), (9, 2), (-3, -4)}
A) {4, 9, -3}
B) {(4, 8), (9, 2), (-3, -4)}
C) {8}
D) {8, 2, -4}
  • 6.
A) A
B) D
C) C
D) B
  • 7. Which of the following relations is a function?
A) {(3, 1), (4, 1), (3, 2)}
B) {(0, 0), (0, 1), (1, 2)}
C) {(0, 0}, (1, 2), (2, 3)}
D) {(1, 1), (1, 2), (1, 3)}
  • 8. Which of the following relations is a function?
A) {(1, 2), (2, 2), (3, 4)}
B) {(0, 4), (5, 6), (5, 8)}
C) {(3,7), (3, 6), (5, 3)}
D) {(1, 2), (-1, 3), (-1, 8)}
  • 9.
A) C
B) B
C) D
D) A
  • 10. Is it a function?
A) yes
B) no
  • 11. Is it a function?
A) no
B) yes
  • 12. Is it a function?
A) yes
B) no
  • 13. What is the domain of the graph?
A) 0<x<9
B) 0<y<9
C) 1<y<4
D) 1<x<4
  • 14. Is it a function?
A) no
B) yes
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