Question

Range of ✓x-1?

Answer 1

If the function given is `sqrt{x}-1`
`\text{Range}=[-1\ ,\ infty)`

If the given function is `sqrt{x-1}`
`\text{Range}=[0\ ,\ infty)`

Explanation:

Range is defined as the values of the dependent variable for which the function is defined.

The radical function of the form `c\sqrt{ax+b}+k` has range `f\(x)\ge k`

So, if our given function is `\sqrt{x}-1`, the range would be:

`f(x)\ge -1`

And, if our give function is `\sqrt{x-1}`, the range would be:

`f(x)\ge 0`

That's it!