Functions Review

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

What is another term for y-values?

• Independent Variable

• Dependent Variable

Which set of numbers represents the range for the given coordinate?

{(-7,0), (8,-4), (-8,-8), (5,1), (-8,9)}

• {-7,8,-8,5}

• {0, -4, -8,1,9}

• {0, -4,8, -8,1,9}

• {-7,0, -8,8,5}

Does the following represent a function?

{(-7,0), (8,-4), (-8,-8), (5,1), (-8,9)}

• Yes

• No

The point (0,0) is called what?

• Y Axis

• X Axis

• Origin

• Quadrant

Choose all the graphs that do not represent a function.

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Which table does not represent a function?

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Which sets of ordered pairs are functions?

Choose all that apply.

• (9, -1), (8, -2), (7, -3), (6, -4)

• (5, -1), (5, -2,), (5,12), (5, 0)

• (4, 2), (-4, 2), (2, 4), (-2, -4)

• (1, -4), (2, -4,), (3, -4), (4, -4)

• (5, 8), (4, 9), (5, 9), (4, 8)

• Function
• Not a Function

• Function
• Not a Function