Question

For questions 1 and 2, identify the domain and range of each graph.

1. What is the domain and range of the graph
shown?
-10 84
10-
8-
6.
4-
-2-
44
6+
8+
-10-
2
2. What is the domain and range of the graph
shown?
4
10-
8
6
2-
4
-6-
8
8 10 12

Answer 1

The domain and range for the graphs are:

1) Domain is: (−∞,∞)

Range is: (0, ∞)

2) Domain is: (0, ∞)

Range is: (0, ∞)

How to find the domain and range of the graphs?

The domain and range of a function are the set of all the inputs and outputs a function can give, respectively.

In other words, the domain is the set of all x-values for which the function is defined, while the range is the set of all y-values that the function produces.

1) Looking at the given quadratic graph, we can say that:

The domain is the set of all values of x from negative infinity to positive infinity.

Domain is: (−∞,∞)

While range is a set of all numbers greater than or equal to zero.

Range is: (0, ∞)

2) The domain is the set of all values of x from 0 to positive infinity.

Domain is: (0, ∞)

While range is a set of all numbers greater than or equal to zero.

Range is: (0, ∞)