Question

(Imagine the X and Y are columns)

X Y
-3 7
-7 1
1 5
-8 4
-7 8
1 4




For the chart shown, list the domain and range.

A. None of these
B. Domain {–3, –7, 1, –8}; range {7, 1, 5, 4, 8,4}
C. Domain {–3, –7, 1, –8}; range {7, 1, 5, 4, 8}
D. Domain {–3, –7, 1, –8, 1}; range {7, 1, 5, 4, 8, 5}

Answer 1

Answer: OPTION C.

Explanation:

By definition, the Domain is the set of the input values (x values) and the Range is the set of the output values (y values).

You can observe in the table that the input values are:

`-3,-7,1,-8,-7,1`

Therefore, the Domain is:

`Domain`{
`-3,-7,1,-8`}

Observe that the you do not need to write the same value twice.

The output values are:

`7,1,5,4,8,4`

Therefore, the Range is:

`range`{
`7,1,5,4,8`}

Observe that the you do not need to write the same value twice.