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11a - Entr Crd Function Not Funct - D & R.

11a - Entr Crd Function Not Funct - D & R.-example-1
User Shanieka
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1 Answer

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To find:

Determine whether the relation is a function and find domain and range.

Solution:

A relation can be identified as a function if each element in domain has only one image in the range of the function.

The first function is shown by a graph. Here, each x-value has a different y-value. So, the given relation is a function.

The domain of the first function is


(-\infty,\infty)

The range of the first function is


(-\infty,\infty)

In the second function, -2 has two images that are (0, 3). So, it is not a function.

The domain is (-4, -2, 1, 2) and the range is (-1, 0, 2, 3).

User Shereef
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