How do you identify transformations in parent functions given #y = 2sqrtx+5#?

1 Answer
Feb 17, 2018

A multiplier on the "outside" of the radical will stretch or shrink the "output", and an addition or subtraction on the"outside" will shift the "outputs" up or down.


#2*sqrt(x)# will cause all output values from the parent function to be doubled, yielding a vertical stretch. (taller)

After applying that stretch, adding 5 to each y-value will raise the graph up 5 units.

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