### Home > GB8I > Chapter 8 Unit 9 > Lesson INT1: 8.1.3 > Problem 8-49

8-49.

On graph paper, graph ,

*, and*

*.*

What is

(the length of)?Use the Pythagorean Theorem to find the length of

. Reflect

across the -axis to form. What are the coordinates ? Describe a function,, that would map the coordinates of to . When describing a function for a transformation, look at one point and its image and determine what changes happen to the

-coordinate and the-coordinate.

Use the eTool below to answer the parts of the problem.

Click the link at right for the full version of the eTool: *8-49 HW eTool*