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Stretches
Module C1 Module C2
Edexcel AQA
OCR MEI/OCR
"Certain images and/or photos on this presentation are the copyrighted property of JupiterImages and are being used with
permission under license. These images and/or photos may not be copied or downloaded without permission from JupiterImages"…read more

Slide 3

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Stretches
We have seen that graphs can be translated.
e.g. The translation of the function by the
vector gives the function .
The graph becomes
We will now look at other transformations.…read more

Slide 4

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Stretches
e.g.1 Consider the following functions:
and
For
For
In transforming from to the
y-value has been multiplied by 4…read more

Slide 5

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Stretches
e.g.1 Consider the following functions:
and
For
For
In transforming from to the
y-value has been multiplied by 4
Similarly, for every value of x, the y-value on
is 4 times the y-value on
is a stretch of scale factor
4 parallel to the y-axis…read more

Slide 6

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Stretches
The graphs of the functions are as follows:
is a stretch of
by scale factor 4, parallel to the y-axis
BUT, you may look at the graph and see the
transformation differently.…read more

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Comments

daviesg

A really good ppt of the stretch transformation, illustrated using autograph.  Very clear explanation.

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