Question

2. What is the domain and range of the

graph shown?
-8-64
10-
8-
B
4+
2-
4+
6+
do do t
-10
2 4 6 8 10 12

Answer 1

• domain: x ≥ 0
• range: y ≥ 0

Explanation:

The domain of a function is the set of x-values for which it is defined. The range of a function is the set of y-values the function produces.

Domain

The domain is the horizontal extent of the graph. This graph extends from x=0 toward x→∞. The domain is x ≥ 0. In interval notation, it is written [0, ∞).

Range

The range is the vertical extent of the graph. This graph extends from y=0 toward y→∞. The range is y ≥ 0. In interval notation, it is written [0, ∞).