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Tuesday, February 4th

Tuesday, February 4th. Bell Ringer: What type of correlation do you see in this graph? How do you know?. Bell Ringer Review + HW Check. HW tracker. How are we doing. Objective:. I CAN write the equation of a trend line and use that to make predictions

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Tuesday, February 4th

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  1. Tuesday, February 4th Bell Ringer: What type of correlation do you see in this graph? How do you know?

  2. Bell Ringer Review + HW Check

  3. HW tracker • How are we doing

  4. Objective: • I CAN write the equation of a trend line and use that to make predictions • Homework: Complete the back of the sheet

  5. POSITIVE NEGATIVE NO

  6. bbbbb

  7. Now let’s look at the airline data from yesterday

  8. Writing for math • Conclusion from the graph What type of correlation do you see? As the distance of a flight increases, the time of the flight increases Positive

  9. Let’s draw a trend line (1864, 290) (307, 70)

  10. (1864, 290) (307, 70) Write the equation

  11. (1864, 290) (307, 70)

  12. Now what do the slope and y intercept mean • Slope: represents the rate of change. • Y intercept: represents the value of y when x is 0

  13. Let’s draw a trend line (1864, 290) (307, 70)

  14. Answer these questions with your partner • What does the slope represent? • What does y – intercept mean? • Predict how long an 2000 mile flight would be? The number of minutes it takes to fly 1 mile How long it takes to fly 0 miles ????

  15. Now let’s draw a line of fit for the cost vs distance scatter plot (1864, 290) (307, 70)

  16. Answer these questions with your partner • What does the slope represent? • What does y – intercept mean? • Predict how much it will cost to fly to Miami (1190 miles from Chicago)? The cost per mile How much it costs to fly 0 miles ????

  17. Try to write the trend line on your own

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