Function Identification (Grade 10)

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Function Identification

1. 
The equation [math]y=3/4x[/math] is a function.
  1. True
  2. False
2. 
Which of these equations is not a function?
  1. [math]y=x^2[/math]
  2. [math]x=3[/math]
  3. [math]y=4x+3[/math]
  4. [math]f(y)=4y^2 -2[/math]
3. 
A function must pass the                                  test.
4. 
The ordered pairs
(2,3)
(3,4)
(5,2)
(3,3)
(4,1)
are part of a function.
  1. True
  2. False
5. 
[math]y=5x+2[/math] is a function.
  1. True
  2. False
6. 
Jack earns $12/hr. He works 5 shifts each week that are each 8 hours long. The bus costs him $2.50 each time he goes to work. Jack's weekly earnings can be represented by a function.
  1. True
  2. False
7. 
The ordered pairs
(1,2)
(2,3)
(3,2)
(4,3)
(5,2)
represent a function.
  1. True
  2. False
8. 
Jack counts his steps and times himself as he walks across the football field.

This is
  1. not a function
  2. a continuous function
  3. a discrete function
  4. a partial function
9. 
A function showing the changing altitude of a flying airplane would be a continuous function.
  1. True
  2. False
10. 
An equation which represents a bouncing ball would
  1. not be a function.
  2. be a continuous function.
  3. be a discrete function.
  4. be a partial function.

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