Download presentation

Presentation is loading. Please wait.

1
Focus Lesson

2
4-2 Tables and Graphs

3
**How do you identify ordered pairs from a table of values?**

Essential Question How do you identify ordered pairs from a table of values?

4
**Discovery School- Coordinate Planes X and Y Mark the Spot**

Write down 3 facts from the video clip. 1. 2. 3.

5
**Example 1 Write the ordered pairs from the table.**

y -2 -1 4 7 9 5 -3 (x, y) (-2, -1) (4, 7) (0, 9) (5, -3) (-2, -1), (4, 7), (0, 9), and (5, -3).

6
**Example 2 Write the ordered pairs from the table.**

y 3 -4 2 -8 8 -1 (x, y) (3, -4) (2, -8) (8, 3) (-1, 0) (3, -4), (2, -8), (8, 3), and (-1, 0).

7
**Example 3 Write and graph the ordered pairs from the table.**

y –2 2 –4 4 –1 –3 –5 5 3 1 x y 1 4 -1 -2 3 2 -5 • (1, 4) • (3, 2) (–5, 0) • (–1, –2) • (1, 4), (-1, -2), (3, 2), and (-5, 0). Plot the points on a coordinate plane.

8
**Example 4 Write and graph the ordered pairs from the table.**

y –2 2 –4 4 –1 –3 –5 5 3 1 x y 2 3 -3 -2 4 (–2, 4) • • (2, 3) • (3, –2) (–3, –3) • (2, 3), (-3, -3), (3, 2), and (-2, 4). Plot the points on a coordinate plane.

9
**Steps for Word Problems**

1. Pick out what the question is asking. 2. Write the ordered pairs 3. Graph the ordered pairs 4. Answer the questions

10
Example 5 Graph the data given in the table showing the number of pounds of food purchased and its cost. 1. What appears to be the relationship between the number of pounds and the cost in the table below? Number of Pounds 1 2 3 4 Cost($) 1.85 3.70 5.55 7.40 2. Write the ordered pairs from the table. (x, y) (1, 1.85) (2, 3.70) (3, 5.55) (4, 7.40) (1, 1.85), (2, 3.70), (3, 5.55), and (4, 7.40).

11
Cost ($) Number of Pounds The graph shows that the cost is the number of pounds multiplied by 1.85.

12
Practice (1, 1); (2, 1); (3,1); (4,1) (8, 4); (10, 5); (12, 6); (14, 7) (-2, 0); (-1, 9); (0, 18); (1, 27)

13
**Practice (-5, 4 ) • (-3, 2 ) • (4, 1 ) • (3, 0 ) • (-1, 0 ) •**

x y –2 2 –4 4 –1 –3 –5 5 3 1 x y –2 2 –4 4 –1 –3 –5 5 3 1 (-5, 4 ) • (-3, 2 ) • (4, 1 ) • (3, 0 ) • (-1, 0 ) • (2, -1) • (1, -2) • (1 ,-2 ) •

14
**The graph shows that the number of drinks is multiplied by a $1.50.**

Practice Number of Drinks Cost (1, 1.50); (2, 3.00); (3, 4.50); (4, 6.00) The graph shows that the number of drinks is multiplied by a $1.50.

15
Graded Practice

16
Homework Workbook Page All problems

17
**1. Write and graph the ordered pairs from the table.**

Closing 1. Write and graph the ordered pairs from the table. (-10, 10) • x y –4 4 –8 8 –2 –6 –10 10 6 2 x y 2 6 –10 10 –4 –6 –8 • (2, 6) (-4, -4) • (-6, -8) • The ordered pairs are (2, 6), (-10, 10), (-4, -4), and (-6, -8).

18
**Hours 1 2 3 4 Scores 15 30 45 60 Closing cont…**

2. The table shows the number of hours a student studies for a test and scores. Graph the data to find the number of correct answers after studying for 6 hours. What appears to be the relationship between the number of hours of study and the score? Hours 1 2 3 4 Scores 15 30 45 60 90; the score is multiplied by 15.

Similar presentations

OK

The table shows the top scores for girls in barrel racing at the 2004 National High School Rodeo finals. The data can be presented in a table or a spreadsheet.

The table shows the top scores for girls in barrel racing at the 2004 National High School Rodeo finals. The data can be presented in a table or a spreadsheet.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Download ppt on recession in india Download ppt on wildlife conservation in india File type ppt on cybercrime Slideshare ppt on marketing Ppt on activity based costing Ppt on information technology and values Download ppt on transportation and communication Presenter notes in microsoft ppt online Ppt on regular expression reference Ppt on schottky barrier diode