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.

If it is driven more than 89 miles, Philadelphia Truck Rental is the better choice.

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.

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.

HOMEWORK ANSWER #23 A

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)

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.

WARM-UP

In the warm-up section of your notebook title it:

Pg 17#43-46

Make sure your notebook cover sheet looks like this.

#. DATE Book / Brief Description1. 9-15 V&P: Problem 2.3, ACE 8, 10-12

Open your books to page 33

You Need: Notebook Assignment Sheet

Problem 2.3 HandoutBIG IDEA: Reading Graphs

GET YOUR CALCULATOR!

Runners…get a NEW “Notebook Assignment Sheet” for each of your group members!

Let’s read the “Getting Ready”…

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?

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”

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

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.

B) Independent timeDependent speedGraph # 6Relationshipthe riders speed increases, then decreasesTitle 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.

C)Independent timeDependent water levelGraph 1Relationship fill tub, get in, get out, drain itTitle Tub Water Level

C) The water level changes over time when someone fills a tub, takes a bath, and empties a tub.

D)Independent # people in parkDependent waiting timeGraph 4Relationship waiting time increases as # people increasesTitle 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.

E)Independent time Dependent # hours of daylightGraph 3Relationship over the seasons, the amount of light variesTitle Daylight vs. Season ChangeE) The number of daylight hours changes over time as seasons change.

F)Independent timeDependent weekly attendanceGraph 2Relationship weekly attendance decreases as time passesTitle Weekly Movie AttendanceF) Weekly attendance at a popular movie changes as time passes from the date the movie first appears in theaters.

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

BE SURE YOUR NOTEBOOK ASSIGNMENT SHEET LOOKS LIKE THIS…

#. DATE Book / Brief Description

1. 9-18 V&P: Problem 2.3, ACE 8, 10-12You may begin your

homework…