Question

Consider the following graph. Determine the domain and range of the graph? Is the domain and range all real numbers?

Answer 1

Domain = [-10, 10]

Range = [4]

Step-by-step explanation

Domain of a graph is the set of all input values on x-axis; while

Range is the set of all possible output values on y-axis.

Determining the Domain from the given graph,

The set of all INPUT values on x-axis are -10, -9, -8,....0......5,6,7,8,9,10.

So the Domain = [-10, 10].

Determining the Range from the given graph,

For the set of all possible OUTPUT values on y-axis, we only have 4,

So the Range = [4]

Hence, Domain = [-10, 10] and Range = [4]