Objective The student will be able to: graph ordered pairs on a coordinate plane.

In the beginning of the year, I created a seating chart for my classes. I created 5 rows of desks with 4 desks in each row. Brian sits in the third row at the second desk (3,2) and Dwanda sits in the second row at the third desk (2,3). Are these seats the same? No!! The seats (3,2) and (2,3) are called ordered pairs because the order in which the pair of numbers is written is important!!

Who is sitting in desk (4,2)? ABCDE F A GHIJ K P LMNO QRST N

Ordered pairs are used to locate points in a coordinate plane. x-axis (horizontal axis) origin (0,0) y-axis (vertical axis)

In an ordered pair, the first number is the x-coordinate. The second number is the y-coordinate. Graph. (-3, 2)

What is the ordered pair for A? 1.(3, 1) 2.(1, 3) 3.(-3, 1) 4.(3, -1) A

What is the ordered pair for B? B 1.(3, 2) 2.(-2, 3) 3.(-3, -2) 4.(3, -2)

What is the ordered pair for C? 1.(0, -4) 2.(-4, 0) 3.(0, 4) 4.(4, 0) C

What is the ordered pair for D? D 1.(-1, -6) 2.(-6, -1) 3.(-6, 1) 4.(6, -1)

Write the ordered pairs that name points A, B, C, and D. A = (1, 3) B = (3, -2) C = (0, -4) D = (-6, -1) A B C D

The x-axis and y-axis separate the coordinate plane into four regions, called quadrants. II (-, +) I (+, +) IV (+, -) III (-, -)

Name the quadrant in which each point is located (-5, 4) 1.I 2.II 3.III 4.IV 5.None – x-axis 6.None – y-axis

Name the quadrant in which each point is located (-2, -7) 1.I 2.II 3.III 4.IV 5.None – x-axis 6.None – y-axis

Name the quadrant in which each point is located (0, 3) 1.I 2.II 3.III 4.IV 5.None – x-axis 6.None – y-axis

1.(8,–7) 2.(4,0) 3.(–4,–5) 4.(0,–9) 5.(7,12) Plot each point and describe how to get to the point from the origin. From the origin, move to the right 8 units, then down 7 units. From the origin, move to the right 4 units, then stop (Stay on the x-axis.). From the origin, move to the left 4 units, then down 5 units. From the origin, don’t move to the right or left (stay on the y-axis), then move down 9 units. From the origin, move to the right 7 units, then up 12 units.

Use your own words to explain what each term means:  Origin  Quadrant  Axis  Coordinates  Ordered pair