Question

State the domain and range for each graph and then tell if the graph is a function

Answer 1

The domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis.

$\lbrace x|x=2,3\rbrace$

The range is the set of possible output values, which are shown on the y-axis.

$(-\infty,\infty)$