Question

What is the range of the function f(x) = sqrt x+3   – 7?

f(x) ≥ –7
f(x) ≥ –3
f(x) ≥ 3
f(x) ≥ 7

Answer 1

A: f(x) ≥ –7

Explanation:

Answer 2

The values produced by the function

`f(x)=√(x+3)-7`

will not be any lower than -7, but may be that low when x=-3.

That is, the range is

... f(x) ≥ -7 . . . . matches the 1st selection