Question

What is the domain of the function f(x)=3 square root x-2

Answer 1

x
`\geq`2

Explanation:

the number under the square root needs to be 0 or positive since you cant have the square root of a negative. so set x-2=0 solve for x you get 2

Answer 2

Domain = [2 , +∞[

Explanation:

the function have a sense only and only if x-2 ≥ 0 equivalent to x ≥ 2