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Recognize different “classic types of graphs” Recognize how the manipulated variable (x) causes a change in the respondi

AIM: What are some characteristics of graphs? . OBJECTIVES. Recognize different “classic types of graphs” Recognize how the manipulated variable (x) causes a change in the responding variable (y). AIM: What are characteristics of of line graphs?.

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Recognize different “classic types of graphs” Recognize how the manipulated variable (x) causes a change in the respondi

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  1. AIM: What are some characteristics of graphs? OBJECTIVES Recognize different “classic types of graphs” Recognize how the manipulated variable (x) causes a change in the responding variable (y)

  2. AIM: What are characteristics of of line graphs? Vocabulary Best fit graph Inversely (indirectly) proportional Directly proportional

  3. DEFINITION: • a LINE GRAPH is a diagram which shows how changing one variable • (the manipulated variable) X, • causes a second (or responding) variable Y to also change in response.

  4. EXAMPLE: Number of Frog Croaks • Air Temp # of Croaks per minute • 22 12 • 23 14 • 24 15 • 25 16 • 26 17 • 31 21 • 32 26

  5. GRAPH IT! Don't forget your labels and the title!

  6. Step One: Draw your axis:

  7. Step Two: label your axis: 30 20 # Croaks per per minute 15 10 22 23 24 25 26 27 28 29 30 31 32 AIR TEMPERATURE Degrees C

  8. Step Three: Plot your Points 30 20 # Croaks per per minute 15 10 22 23 24 25 26 27 28 29 30 31 32 AIR TEMPERATURE Degrees C

  9. Step Four: Draw your Line 30 20 # Croaks per per minute 15 10 22 23 24 25 26 27 28 29 30 31 32 AIR TEMPERATURE Degrees C

  10. Step Four: Draw your Line 30 20 # Croaks per per minute 15 10 22 23 24 25 26 27 28 29 30 31 32 AIR TEMPERATURE Degrees C

  11. Step Four: Draw your Line 30 20 # Croaks per per minute 15 10 22 23 24 25 26 27 28 29 30 31 32 AIR TEMPERATURE Degrees C

  12. Line Graphs: Allow you to estimate trends: “As temperature increases what is happening to the number of croaks?” 25 20 # Croaks per per minute 15 10 22 23 24 25 26 27 28 29 30 31 32 AIR TEMPERATURE Degrees C

  13. Line Graphs: Allow you to estimate trends: “As temperature decreases what is happening to the number of croaks?” 25 20 # Croaks per per minute 15 10 22 23 24 25 26 27 28 29 30 31 32 AIR TEMPERATURE Degrees C

  14. Three Types of Line Graphs • Best Fit • Direct • Indirect

  15. Line Graphs “Best Fit Graphs” • Normally, best first graphs are only done when the directions explicitly indicate to construct a “best fit graph” AIM: What is a line graph?

  16. Best Fit Graph

  17. Best Fit Graph ?

  18. Best Fit Graph ?

  19. Best Fit Graph ?

  20. Line Graphs: Inverse Proportional vs. Directly Proportional Graphs!

  21. GRAPH THIS: Hours of Study Grade .5 50 1 75 1.5 85 2 90 3 100

  22. GRAPH THIS: Hours of TV Grade 1 100 2 90 3 85 4 75 5 60

  23. Hours of TV vs. Grades on Test

  24. What is the difference between these two graphs? Hours of TV vs. Grade As X increases, Y decreases Slopes Downward Indirectly or Inversely Proportional As X increases, Y increases Slopes Upward Directly Proportional

  25. AIM: What is a Line Graph? Class ACTIVITY: Creating Line Graphs page 67

  26. Homework: INTERNET QUESTIONS AIM: What is a line graph?

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