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It’s MATH TIME!

It’s MATH TIME! . Please take out your homework (ACE 6, 22, 23)… …and your DEAR book to read. . Homework answers #6 a & B. Homework answer #6 c & D. d. If the truck is driven for less than ~89 miles , East Coast Trucks is the company to use.

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It’s MATH TIME!

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  1. It’s MATH TIME! Please take out your homework (ACE 6, 22, 23)… …and your DEAR book to read. 

  2. Homework answers #6 a & B

  3. Homework answer #6 c & D d. If the truck is driven for less than ~89 miles, East Coast Trucks is the company to use. If it is driven more than 89 miles, Philadelphia Truck Rental is the better choice.

  4. Homework answer #22 a • A) (Look at graph) While it doesn’t make complete sense to connect the points because the # of customers is not a continuous variable, it is quite common to see continuous graphs drawn in such situations.

  5. Homework answer #22 B &C • B) For each increase of $2 in price, there is a decrease of 15 customers. The points fall exactly on a line. • C) The pattern suggests that if the price is $16, there will be 30 customers. A price of $20 will attract NO customers. A price of $2 will attract 135 customers.

  6. Homework answer #23 A

  7. Homework answer #23 B • B) It does make some sense to connect the points because prices could be offered at just about any dollar amount (including partial dollars as fine as $.01)

  8. Homework answer # 23 c • C) The pattern shows increasing income as price increases, but only to a point. Then the price-induced decrease in customers becomes a stronger factor in shaping income than the increase in price itself. The pattern in the data makes sense because if the price goes too high, the number of customers willing to pay this price will decrease. Hence, the income will decrease.

  9. Warm-up • In the warm-up section of your notebook title it: • Pg 17#43-46

  10. Runners…get a NEW “Notebook Assignment Sheet” for each of your group members! Make sure your notebook cover sheet looks like this. #. DATE Book / Brief Description 1. 9-15 V&P: Problem 2.3, ACE 8, 10-12 You Need: Notebook Assignment Sheet Problem 2.3 Handout GET YOUR CALCULATOR! BIG IDEA: Reading Graphs Open your books to page 33

  11. Let’s read the “Getting Ready”…

  12. While you explore… • Which variable depends on the other? • As the independent variable increases, what happens to the dependent variable? • Will the increase or decrease be constant or will it slow down or speed up in places? • How will the change appear in the graph moving from left to right?

  13. Work individually for a few minutes on problem 2.3 A & B to match the graphs… • Book p. 34 • Do it in the “Problems/ ACE” section • Title it “Problem 2.3”

  14. Now continue with your group to finish the rest and come to a consensus! • I should hear a lot of vocabulary used during this • Dependent • Independent • Increase • Decrease • X and y axis • Coordinate graph • Scale • Pattern • relationship

  15. Independent: Price of the Trip Dependent: # of Students Graph #: 2 Relationship as the price goes up, attendance goes down Title: Field Trip A) The number of students who go on school trip is related to the price of the trip for each student.

  16. B) Independent time Dependent speed Graph # 6 Relationship the riders speed increases, then decreases Title Speed of a Skateboarder B) When a skateboard rider goes down one side of a half pipe ramp and up the other side, her speed changes as time passes.

  17. C) Independent time Dependent water level Graph 1 Relationship fill tub, get in, get out, drain it Title Tub Water Level C) The water level changes over time when someone fills a tub, takes a bath, and empties a tub.

  18. D) Independent # people in park Dependent waiting time Graph 4 Relationship waiting time increases as # people increases Title Amusement Park Lines D) The waiting time for a popular ride at an amusement park is related to the number of people in the park.

  19. E) Independent time Dependent # hours of daylight Graph 3 Relationship over the seasons, the amount of light varies Title Daylight vs. Season Change E) The number of daylight hours changes over time as seasons change.

  20. F) Independent time Dependent weekly attendance Graph 2 Relationship weekly attendance decreases as time passes Title Weekly Movie Attendance F) Weekly attendance at a popular movie changes as time passes from the date the movie first appears in theaters.

  21. G) Independent temperature Dependent # of customers Graph 4—(or 5 if you think people won’t come because it’s too hot! Relationship # customers increases as temperature increases Title Number of Customers G) The number of customers at an amusement park with water slides is related to the predicted high temperature for the day.

  22. Be sure your notebook assignment sheet looks like this… • #. DATE Book / Brief Description • 1. 9-18 V&P: Problem 2.3, ACE 8, 10-12 You may begin your homework…

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