Write the equation that results when you start with y = f(x), expand it vertically by a factor of 4, etc etc
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Write the equation that results when you start with y = f(x), expand it vertically by a factor of 4, etc etc

[From: ] [author: ] [Date: 11-12-10] [Hit: ]
compress it horizontally by 1/2, translate it 2 units right and, 1 unit up and take its reciprocal.If anyone could outline the steps taken to achieve the answer to this it would be much appreciated.Thanks in advance.compress it horizontally by 1/2.......
Here is the full question:

Write the equation that results when you start with y = f(x), expand it vertically by a factor of 4, compress it horizontally by 1/2, translate it 2 units right and, 1 unit up and take its reciprocal.

If anyone could outline the steps taken to achieve the answer to this it would be much appreciated.

Thanks in advance.

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y = f(x)
Expand it vertically by a factor of 4
y = 4f(x)
compress it horizontally by 1/2.
y = 4f(2x)
Translate it 2 units to the right
y = 4f(2(x-2)) = 4f(2x-4)
Translate it 1 unit up
y = 4f(2x-4)+1
Reciprocal
y = 1/[4f(2x-4)+1]
1
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