Envision Math 2.0: Grade 8, Volume 2
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Envision Math 2.0: Grade 8, Volume 2 View details
1. Analyze Translations
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Exercise 14 Page 302

Recall the definition and properties of a translation.

The first, third, and fourth

Practice makes perfect

We want to determine which of the given statements are true. We will do this one at a time.

First Statement

Let's recall the definition of a translation.

A translation is a transformation that moves every point of a figure the same distance and the same direction.

According to this definition, each point in the image created by a translation moves the same distance and direction from the preimage.
translation
Therefore, the first statement is true.

Second Statement

To determine whether the second statement is true, we will look at an example of a translation.

translation

Figure A' is an image of Figure A and point K' is an image of point K. We can see that K and K' do not have the same x-coordinate. This means that the second statement is not true.

Third and Fourth Statements

Now we will determine whether the third and the fourth statements are true. To do so, let's recall the properties of the figure after a translation.

An image of a figure after a translation has the same shape, size, and orientation as the figure.

According to this fact, the preimage and the image are the same size and shape. Let's convince how it works by looking at the example!
translation
We can see that Figure A did not change its shape and size after the translation. Therefore, the third and the fourth statements are true.