Question

Which of the following functions has a domain of x ≥ 0?

linear
squaring
square root
cubing

Answer 1

i think the answer is c.) which is square root

Explanation:

Answer 2

C. Square root.

Explanation:

We have been given 4 choices. We are asked to determine, which of the given functions has a domain of x ≥ 0.

A. linear.

We know that linear function is in form
`y=mx+b`, which is defined for all values of x, therefore, option A is not a correct choice.

B. Square

We know that a square function is in form
`y=x^2`, which is defined for all values of x, therefore, option B is not a correct choice.

C. Square root.

We know that a square root function is in form
`y=√(x)`. We also know that a square root function is not defined for negative values of x, so a square root function is defined for all values of
`x\geq 0`. Therefore, option C is the correct choice.

D. Cube

We know that a cube function is in form
`y=x^3`, which is defined for all values of x, therefore, option D is not a correct choice.