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12-19.
  1. Examine the graphs of each relation below. Decide if each is a function. Then describe the domain and range of each. Homework Help ✎

Is there more than one output value for a single input value? If so, it is not a function.

Determine the possible x-values to find the domain and the possible y-values to find the range.

It is not a function.
R: − 3 ≤ x ≤ 3

Is there more than one output value for a single input value? If so, it is not a function.

Determine the possible x-values to find the domain and the possible y-values to find the range.

It is a function.
D: −2 ≤ x ≤ 3