1. Dennis paid $20 for a tub of breath mints and $30 for a year’s supply of chap stick. If tax was 7%, how much did Dennis pay? Price: $20 + $30 = $50 Tax: $50 0.07 = $3.50 Final Cost = Price + Tax $50 + $3.50 = $53.50

2.  Due Friday, January 11 th  Remember the problem: 1. Marcella gave half her bagels and two more to: a. The needy b. Some surfers c. Her friend Susan. 2. She had two left when she got home. 3. How many bagels did she buy?

3. GRE 201: Identify the location of a point with a positive coordinate on the number line GRE 301: Locate points on the number line and in the first quadrant GRE 401: Locate points in the coordinate plane GRE 402: Comprehend the concept of length on the number line*

4. x-axis y-axis Origin Quadrant IQuadrant II Quadrant III Quadrant IV

5. 0 1 23 -2 -3 -2 -3 1 2 3 Each number refers to the line, NOT the space in between the lines. Every number represents the same number of spaces in the x and y-axes.

6. 0 1 23-2-3 -2 -3 1 2 3 NO!!! Each number in both the x and y-axes must equal the same number of spaces.

7. 0 1 2 3-2-3 -2 -3 1 2 3 No, each number is attached to the line, not the space in between the line!

8. 0 1 2 -2 1 2 Yes!!! Each number is evenly spaced on both the x and y-axes.

9. 0 1 2 3-2-3 -2 -3 1 2 3 No, the space between 0 and 1 is not the same as between 1 and 2.

10.  Coordinate points are also called ordered pairs.  They tell the location of the point on a coordinate plane.  They are written (x, y), where the ‘x’ coordinate represents the location along the x-axis and the ‘y’ coordinate represents the location along the y- axis.

11. 0 1 23 -2 -3 -2 -3 1 2 3 To locate a point, you begin counting at the origin..A.A You move along the x- axis first. In this case, we moved two places to the right, or +2. Next, move along the y-axis. In this case, we moved three places up, or +3. The location of point A is therefore (2, 3)!

12. 0 1 23 -2 -3 -2 -3 1 2 3. (-2, 4) (x, y) We find -2 on the x- axis first. Next, we move up 4 spaces on the y-axis. Here I am!

13. 0 1 23 -2 -3 -2 -3 1 2 3 A I H G F E D C B J K A: (3, 1) B: (-2, 2) C: (1, -2) D: (4, 5) E: (-4, -2) F: (4, -3) G: (-5, 4) H: (0, -4) I: (4, 0) J: (-5, 0) K: (-5, -5)