Do Now “Top 5 Dog-Owning Countries” (TFK 12/19/14) “It's a dog's world! There are nearly 180 million canine companions in homes around the globe. These countries are the leading dog-owners. Woof, woof!” Write in standard form 1 U.S.A million dogs 2 Brazil million dogs 3 China million dogs 4 Mexico million dogs 5 Russia million dogs 6 Find the difference between Mexico & Russia 7 Find the total of U.S.A. & China

1/20/ A Coordinate Plane

Battleship Activity

What letter is located at (4,2)? ABCDE F A GHIJ K P LMNO QRST

coordinate plane -formed by two number lines in a plane that intersect at right angles The two number lines are called the axes.

The horizontal axis is called the x-axis.

The vertical axis is called the y-axis.

The two axes divide the coordinate plane into four quadrants.

The point where the axes intersect is called the origin.

Example 1 Name the quadrant where each point is located. A. X B. Y C. S Quadrant IV Quadrant III Quadrant II

The numbers in an ordered pair are called coordinates. -The first number is called the x- coordinate. The second number is called the y- coordinate. The ordered pair for the origin is (0,0).

Example 2 Give the coordinates of each point. X (4, –1)

Example 3 Give the coordinates of each point. Y (–2, –3) From the origin, Y is 2 units left, and 3 units down.

Example 4 Give the coordinates of each point. S From the origin, S is 3 units left, and 3 units up. (–3, 3)

Example 5 Graph each point on a coordinate plane. A. V(4, 2) B. W(–3, 1) x y –4 – –2–2 –4–4 From the origin, move 4 units right, and 2 units up. V W From the origin, move 3 units left, and 1 unit up.

Example 6 Graph each point on a coordinate plane. C. Z(0, 4) D. T(1, –3) From the origin, move 4 units down. x y –4 – –2–2 –4–4 Z T From the origin, move 1 unit right, and 3 units down.

Ex. 7:What is the ordered pair for A? 1.(3, 1) 2.(1, 3) 3.(-3, 1) 4.(3, -1) A

Ex. 8: What is the ordered pair for B? B 1.(3, 2) 2.(-2, 3) 3.(-3, -2) 4.(3, -2)

Ex. 9: What is the ordered pair for C? 1.(0, -4) 2.(-4, 0) 3.(0, 4) 4.(4, 0) C

Ex. 10: What is the ordered pair for D? D 1.(-1, -6) 2.(-6, -1) 3.(-6, 1) 4.(6, -1)

Ex.11: 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

Ex. 12: 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

Ex. 13: 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

Name the quadrant where each ordered pair is located. 1. (3, –5)2. (–4, –2) 3. (6, 2)4. (–7, 9) Give the coordinates of each point. 5. A6. B 7. C8. D III IV I II (–2, 3) (1, 2) (0, –2) (–2, –3) Exit Ticket

Homework Pg. 369 #1-22 Evens Plot 5 Points on Graph Paper and write the ordered pairs in your notebook