Which statement is true? a translation is a function because each point on the pre-image is mapped to a unique point on the image. a translation is a function because a translation vector is always horizontal. a translation is not a function because the image could overlap the pre-image. a translation is not a function because a point on the pre-image could be mapped to more than one point on the image.

the first one is true

A translation is a function because each point on the pre-image is mapped to a unique point on the image.

Step-by-step explanation:

Translation moves the points on a preimage along a vector <a,b> (horizontal and then vertical component), so that the image is at the same distance and in the same direction as the pre-image.

As per the definition, option A is correct.

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step-by-step explanation:

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