body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Big Ideas Math: Modeling Real Life, Grade 8

BI

Big Ideas Math: Modeling Real Life, Grade 8 View details

Chapter Review

Continue to next subchapter

Exercise 15 Page 92

Plot both points on a coordinate plane. What coordinates are the same? What coordinates are opposite?

Over the x-axis

Practice makes perfect

We are given the coordinates of a point and its image after a reflection. Let's plot them on a coordinate plane!

reflection

We can see that the point (2,1) and its image (2,- 1) are located on opposite sides of the x-axis. Also, their x-coordinates are the same, and their y-coordinates are opposite numbers. With this information we can conclude that the reflection is done over the x-axis.

Subchapter links

1 Translations p.91

2 Reflections p.92

3 Rotations p.92-93

4 Congruent Figures p.93

5 Dilations p.94

6 Similar Figures p.94-95

7 Perimeters and Areas of Similar Figures p.95