WEBVTT
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Okay, First of all, let's take a look
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at the graph of y equals sign of X.
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So why it will sign of X goes through these
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points. Here's a sign curve, and that continues
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. They're infinitely many of them. Well, just
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draw some of it. Okay, So what happens
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if you multiply that by two? That would be
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a vertical stretch. So it's going to be two
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times is tall. So notice that the regular Siggraph
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goes up to a height of one and down to
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a height of negative one. So this new graph
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is going to go up to a height of two
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and down to a height of negative, too.
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We say that the amplitude has changed. We call
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it amplitude when we're talking about a sign graph.
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All right, so there's the graph. Two times
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is tall. Any we go on and on infinitely
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far to the right and left as well. Now
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, for part B, what about the graph of
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y equals square root? X. So that goes
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through the 0.114 to here's what the square root graft
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looks like. What happens if we had one to
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it? We shift the whole Graf up one.
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So the point that was at 00 is going to
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be at 01 The point that was at 11 is
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going to be at 12 And the point that was
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at 42 is now going to be out for three
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. So looks the same, but just shifted up
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one.