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The definition of pre-image in math:

For a point y in the range of a function ƒ, the set of points x in the domain of ƒ for which ƒ(x) = y. For a subset A of the range of a function ƒ, the set of points x in the domain of ƒ for which ƒ(x) is a member of A. Also known as inverse image.

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Q: What is definition of pre-image in math?
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What position is called the preimage?

line or graph on a line in a math equation


What are the three types of dilations in math?

The three types of dilations are an enlarged image (the image is larger than the preimage), a reduced image (the image is smaller than the preimage) and an equal image (the image is the same size as the preimage).


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Dilations are a geometric transformation that results in the image being similar to the preimage.


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A point or a line segment can be a preimage of itself because a line can be reflected or rotated.


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