How do you graph $y=sqrt(x-4)$ and compare it to the parent graph?

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Answer 1 · 2017-03-22T17:07:47

See below:

First, graph the parent graph: $y=sqrtx$ :

graph{sqrtx [-1.79, 18.21, -1.32, 8.68]}

Now, the $-4$ on the inside signifies that you move the graph to the right 4 spaces. So the graph of $y=sqrt(x-4)$ will look like:

graph{sqrt(x-4) [-1.79, 18.21, -1.32, 8.68]}

How do you graph y=sqrt(x-4)y=sqrt(x-4) and compare it to the parent graph?