Determine Function Maps

​ (a)   ​

• Mapping does not represent y as a function of x.

• Mapping represent y as a function of x

Which mapping diagram is not a function?

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For which function would f(3) = 17

• f(x) = 5x

• f(x) = 2(x + 4) + 3

• f(x) = x - 10

• f(x) = 3x + 6

What is a function?

• A relation that maps every domain value to exactly one range value.

• A relation that maps every range value to exactly one domain value.

• Any set of ordered pairs.

• Any graph of x and y values.

What is the test to determine if a graph represents a function?

• Horizontal line test

• Vertical line test

• Heidelberg Uncertainty Test

• Obi Wan Kenobi Test

What is the domain of the graph shown?

• <-2, -1, 0, 1, 2, 3, 4>

• <2, 3, 4>

• <2 ≤ y ≤ 4>

• <-2 ≤ x ≤ 4>

Which graph is not a function?

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Which statement about the mapping is true?

• The mapping represents a function because each input maps to one output.

• The mapping represents a function because each output maps to one input.

• The mapping does NOT represent a function because at least one input maps to more than one output.

• The mapping does NOT represent a function because at least one output maps to more than one input.

Determine whether the mapping represents a function. Explain your reasoning.

The mapping does/does not represent a function because...

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Which set of ordered pairs does NOT represent Y as a function of X?

• <(1, 0), (2, 0), (3, 0), (4, 0)>

• <(3, 5), (4, –1), (2, –1), (2, 7), (–3, 6)>

• <(–3, 9), (–2, 4), (–1, 1), (0, 0), (1, 1), (2, 4), (3, 9)>

• <(1, 3), (2, 6), (3, 9), (4, 6), (5, 3)>