Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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Graphing Radical Equations using Shifts - Problem 4

Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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If you know the "parent" graph and some key features about the graph of y = root (x), then you can use transformation rules to sketch other square root functions. Here we look at vertical stretches and compressions that are caused by multiplying the root by some value. If the (absolute value of) the multiplier is greater than one, then we have a vertical stretch, whereas if the (absolute value) of the multiplier is a fraction between zero and one, then we have a vertical compression. We also consider what this does to our domain (inputs) and range (outputs).

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