What part of a parabola is modeled by the function $y = - \sqrt{x}$ $y=-sqrtx$ and what is the domain and range for the function?

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Answer 1 · 2018-07-24T09:50:08

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$y = - \sqrt{x}$ $y=-sqrtx$ is the bottom part of your parabola $y^{2} = x$ $y^2=x$

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

Below is the graph $y = - \sqrt{x}$ $y=-sqrtx$
graph{-sqrtx [-10, 10, -5, 5]}

The graph $y = - \sqrt{x}$ $y=-sqrtx$ has a domain of $x \geq 0$ $x >=0$ and $y \leq 0$ $y<=0$

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