Name:
Date:
Page 2 of 2
c. You start 4 meters away from the motion detector and do not move. What is your
distance from the motion detector?
m=_______ b=_________
Increasing/Decreasing/Neither
Equation:________________________________________
d. Your club sells popcorn at the hockey games as a fundraiser. It costs you $8 for supplies.
You sell each bag of popcorn for $0.75. What is your profit as a function of bags sold?
m=_______ b=_________
Increasing/Decreasing/Neither
Equation:________________________________________
3. Ken wants to buy the new $270 game system, but he had only $15. Each week he saved the
same amount of money. The table below shows how much money he will have each week.
How many weeks will it take for Ken to have enough money to purchase his game system?
Week
0
1
2
3
4
5
6
Amount saved
15
22
29
36
42
49
56
a. Write an equation in slope intercept form that describes amount saved as a function of the
number of weeks.
b. What is the real life meaning of slope in this situation?
c. What is the real life meaning of the y-intercept?
d. Solve an inequality or an equation to find how many weeks it will take Ken to save
enough money for the game system.
Activity 4.4.5 b
CT Algebra I Model Curriculum Version 3.0