PLZ HELP

Question

Recall that a radical function can be expressed as f(x)= a*sqrt( x - h) + k. How do the values of A, H, and K, affect the domain and range of a radical function? How is this similar to other functions you have learned about (such as linear, quadratic, or exponential functions)? How is it different? Give examples and justify your ideas.

Answer 1

since √x is only defined for x≥0, you need x≥h
and, since √x ≥ 0, that means that f(x) ≥ h if a > 0

Answer 2

Thanks, but what does that have to do with the domain and range of a radical function?

Answer 3

plezzzz helps