Bellwork. Find the absolute value for each point

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1 Bellwork Find the absolute value for each point a 4 b 0 2 c 6 1) a = 2) b = 3) c = 1

2 How many of you have ever been to a concert or a sports event where you had a ticket. Let's talk about what was on the ticket... 2

3 Can you think of a time when you had to locate a point by moving along and up a grid? Make a graph Finding something on a map Crossword Puzzle Others... 3

4 Hand out Student Notes 4

5 We use ordered pairs to graph a coordinate plane. 5

6 Here's the Rule To graph an ordered pair, move along the x axis until you reach the number. Then move up the y axis until you reach the number. Draw the point at the intersection of the two lines. 6

7 y axis (0,0) origin x axis 7

8 One more time... If an x coordinate is + move to the right of the origin (horizontal) If a y coordinate is + move up from the origin (vertical) But which one is the x, and which one is the y? 8

9 The x is the 1st Number Go left or right The y is the 2nd Number Go up or down X comes BEFORE Y 9

10 When you walk into the mall or a hotel, you walk IN before you go UP and DOWN 10

11 (3,2) means 3 to the right (horizontal) 2 up (vertical) (2,3) means 2 to the right 3 up 11

12 To the right of what? y axis Up from what? 0,0 x axis (0,0) is called the origin It is the starting point 12

13 Your turn to show me you understand ordered pairs Who is in the seat that I call out? is sitting at the origin. So who is sitting at... 13

14 Use the ordered pairs to identify the points. Then use the magnifying glass to reveal the answers. y axis 1. (5,2) 2. (4,0) I K 3. (8,3) 4. (1,7) L M 5. (3,8) 6. (5,5) J N M 1 J N I K L x axis 8 14

15 Open up and write in your notebook: Coordinates define a point's unique location. Can a point be represented by more that one ordered pair? Why or why not? 15

16 Guided Practice 16

17 1 What is the location of P, as an ordered pair? Multiple choice A (11,11) B (10,10) y O Q P S C (10,11) M R N D (11,10) x 17

18 2 On this graph, which point is found at (18,5)? Multiple choice A B C S N Q y O M Q P R S N D M x 18

19 3 What is the location of O, as an ordered pair? Multiple choice A (17,4) B (5,17) C (17,5) y O M Q P R S N D (4,17) x 19

20 4 What are the coordinates of point R, if it is moved 3 units right and 2 units up? Multiple choice A (14,8) B (13,10) C (13,8) D (14,11) y O Q S P M R N x 20

21 5 What are the coordinates of point S, if it is moved 4 units left and 1 unit down? Multiple choice y A (12,14) B (11,15) O Q P S C (11,14) M R N D (19,14) x 21

22 6 Where is the point R located? Multiple choice A (18,18) 19 y 17 R B (17,17) Q C (17,16) D (16,16) P x 22

23 IP 23

24 Closure Look at these ordered pairs: (0,4), (2,4), (6,4) What shape would these three points make? Pull 24

25 25

26 Attachments Est 2 Round Wholes.notebook

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