Domain & Range - Finite Graphs

The domain of a function is the set of all possible input values (x-values) for which the function is defined.

The range of a function is the set of all possible output values (y-values) that the function can produce.

To determine the domain from a graph, identify the x-values that the graph covers.

To determine the range from a graph, identify the y-values that the graph covers.

It means that x can take any value from a to b, including a and b.

It means that y can take any value between c and d, but not including c and d.

The domain is $$-10 \leq x \leq -2$$ .

The range is $$3 \leq y \leq 18$$ .

This indicates that the function is defined for all x-values from -15 to 20, inclusive.

This indicates that the function can produce y-values from -4 up to, but not including, 10.