Date Name Enrichment Worksheet 8-10 Using Coordinates 2. Multiply each y-coordinate by -1. 1. Graph the points (1, 1), (4, 4), and Graph the points. How is this triangle (2, 4) on the coordinate system below. related to the one in Exercise 1? Connect the dots. Name the figure formed. 3. Multiply each coordinate in Exercise 1 by -1. Graph the points. 4. What would you have to do to get the coordinates of a triangle in Quadrant II congruent to the ones in Exercises 1-3? 5. Graph the points (3, 1), (2, 3), (4, 6), and (5, 4) on the coordinate plane at the right. Connect the dots. The figure formed is called a parallelogram. 6. Add 2 to both coordinates of each YA point and graph the new coordinates. Name the figure formed. 7. Add -4 to the x-coordinate of each point in Exercise 5 and graph the -2 new coordinates. Is this figure also a parallelogram? -2 0 4 8 10 8. Graph the points (5, -2), (6, -3), (5, -5), and (3, -3) on the coordinate plane at the right. Name the figure formed. 9. Multiply both coordinates of each point in Exercise 8 by 2 and graph the new coordinates. This is an enlargement. 10. Multiply both coordinates of each point in Exercise 8 by - and graph the new coordinates. This is a reduction. 72 Glencoe Division, Macmillan/McGraw-Hill