1. Growing Inv 2.2
Growing Mold

2. a = 1,000(2m)
a = 1,000(212)
a = 4,096,000
After one year, 4,096,000 ft2 will be covered
1,000(214) = 16,384,000
1,000(215) = 32,768,000
It will take between 14 and 15 months for the plant to cover all 25,000,000 ft2
2/5: Table Group Warm Up
Answer Inv.2.1 part C page 29

3. 2/5: Warm-up
Fill in the tables for each of the following equations:
0.25 x y 1 2 3 x y 1 2 3 x y 1 2 3 4
1000
0.5 1
2000
2.5 4
4000
12.5 16
62.5 64
8000
y = 1000(2x)
GOAL:
- Examine growth patterns.
- Interpret an exponential relationship by looking at its equation.

4. Homework
ACE # 3, 5, 6, 7 page 33
Turn in Vocab log: def/ex.

5. Problem page 29 5

6. Problem 2.2 on page 22 m = 50(3d) SHOW ALL OF YOUR WORK!
(Part D especially)
Problem 2.2 on page 22
m = 50(3d)
50 mm2 mold at the start of experiment.
The growth factor is 3.
m = 50(35)
There is 12,150 mm2 of mold after 5 days.
m = 50(243)
m = 12,150
Prove with table or equations
Between the 4th and 5th day the mold area will reach 6,400 mm2.
b=3. It represents the mold area tripling each day.
a=50.
It represents the starting amount of mold area (50 mm2) 6

7. Individual Review p = 5(3d) p = 5(3d) p = 5(315) p = 71,744,535
If you bring home 5 bedbugs home in your suitcase from mid-winter break, they will triple every day.
Make a table showing the population of bedbugs in your room for the first 5 days.
Write an equation to represent the bedbug population (p) after (d) days.
How many bedbugs will be in your bed after 15 days? d p d p 1 2 3 4 5 5 15 45
p = 5(3d)
135
405
p = 5(3d)
1215
p = 5(315)
p = 71,744,535
71,744,535 will be in your bed after 15 days

8. Exp. Function WS Answer Key – #3,4,5