Functions Test

Is the relation a function?

• Yes

• No

The table shows the height y of an airplane, x minutes after it begins its descent. Write a linear function that relates y to x.

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• 
• 
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Choose an ordered pair shown in the mapping diagram.

• (20,25)

• (40,35)

• (30,35)

Which of the following is the correct definition of a function?

• A relation where each input has exactly one output

• A relation where each input has multiple outputs

• A relation where each output has multiple inputs

• A relation where inputs and outputs are the same

• All real numbers

• All real numbers except 2

• All real numbers except 0

• All real numbers except -2

Which of the following does not represent a function?

Which of the following represents a function?

Which of the following is the graph of a linear function?

• A parabola

• A straight line

• A circle

• A hyperbola

Which of the following is an example of a quadratic function?