Naming, Representing, and Evaluating Functions

Which graph does NOT represent y as a function of x?

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Which set of ordered pairs represents y as a function of x?

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Which set of ordered pairs represents y as a function of x?

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Which statement describes the mapping?

• The mapping represents y as a function of x, because each y-value corresponds to exactly one x-value.

• The mapping does not represent y as a function of x, because two of the x-values correspond to the same y-value.

• The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.

• The mapping does not represent y as a function of x, because there are more x-values than different y-values.

Which graph represents y as a function of x?

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Which representation does NOT show y as a function of x?

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Which ordered pairs represents y as a function of x?

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A relation contains the points (1, 2), (2, -1), (3, 0), (4, 1) and (5, -1). Which statement accurately describes this relation?

• The relation does not represent y as a function of x, because each value of x is associated with a single value of y.

• The relation represents y as a function of x, because one value of y is associated with a two values of x..

• The relation does not represent y as a function of x, because each value of y is associated with two values of x.

• The relation represents y as a function of x, because each value of x is associated with a single value of y.

Which representation shows y as a function of x?

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Which graph represents y as a function of x?

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