Question

What are the domain and range for the cube root function graphed below?

Answer 1

Domain: x is all real numbers, range: y ≥ 2

Domain: x ≥ −3, range: y is all real numbers

Domain: x is all real numbers, range: y is all real numbers

Domain: x is all real numbers, range: y ≤ 7

Answer 2

Let's review "domain" and "range," focusing on obtaining such info from a graph.

In this case, the graph is continuous (it has no breaks). That means that both domain and range are represented by one interval each. Which input (x-) values are represented in the given graph? Which output (y-) values are represented? Please answer these questions using mathematical (interval) symbolism.