Ex 3: Find the Equation of a Transformed Square Root Function From a Graph

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This video explains how to determine the equation of an absolute value function that has been horizontally stretched and shifted, up/down, left/right.
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Why is the vertical stretch omitted from the equations?

jeremyho
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based on what you assume that it's a horizontal stretch???

Fialol
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How do you figure out the "a" value?

erichuang
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I am in a fast track program and I missed one class and you explained this perfectly for my Unit test tomorrow. Props, I'll definitely come back if i need future help.

spencer
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Thank you so much! I've been struggling for a bit in math recently and this was really helpful (:

MagicalLionTamer
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How can I decide if I need to use a value of value of b
I mean you chose horizontal stretch why not vertical compression.

abdisamikubey
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Please answer me I have test on Tuesday I want to know why. Also can you make a video on how to find equation from a grpah of a sine or cosine function. Thank you this waa helpful.😊

abdisamikubey
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a is normally 1 unless noted a can not= 1

VampyWorm