Big Ideas Math Geometry, 2014
BI
Big Ideas Math Geometry, 2014 View details
Quiz
Continue to next subchapter

Exercise 1 Page 198

Use the translation to move the points by adding 4 to the x-coordinates and subtracting 2 from the y-coordinates of each vertex.

Practice makes perfect

Before we attempt to translate the given points, let's draw the quadrilateral ABCD on a coordinate plane using the given points. This will be our preimage.

Now that we have the preimage, we can create the image using the translation (x,y) → (x+ 4,y- 2). This translation tells us that for every point in ABCD, we should add 4 to each x-coordinate and subtract 2 from each y-coordinate.

ccc (x,y) &→ &(x+ 4,y- 2) A(-4,1) &→ & A'(0,-1) B(-3,3) &→ & B'(1,1) C(0,1) &→ & C'(4,-1) D(-2,0) &→ & D'(2,-2) Now we have the points for the image. Let's add them to the same coordinate plane as the preimage.

We can see that the translation moved the points to the right and down. Finally, we can connect the points to have the new quadrilateral.