Question

what is the domain of f(x) = ³√x ? a). all real numbers b). positive numbers and zero c). all integers d). whole numbers

Answer 1

A

Explanation:

all real numbers

Answer 2

A

Explanation:

Domain is the ALLOWED
`x` values in a function.

• Does plugging in any positive number pose a problem with getting an answer?

No.

• Does plugging in 0 pose any problem?

No.

• Does plugging in negative numbers pose any problem?

No. Square root of negative numbers are not possible BUT cube root of negative numbers ARE possible.

Also, from the attached snapshot of the graph of
`f(x)=\sqrt[3]{x}` , we can see that ALL real numbers are allowed for
`x`