Question

What part of a parabola is modeled by the function `y=-sqrtx` and what is the domain and range for the function?

Answer 1

Below

Explanation:

`y=-sqrtx` is the bottom part of your parabola `y^2=x`

Below is the graph `y^2=x`
graph{y^2=x [-10, 10, -5, 5]}

Below is the graph `y=-sqrtx`
graph{-sqrtx [-10, 10, -5, 5]}

The graph `y=-sqrtx` has a domain of `x >=0` and `y<=0`