1. Warm –up Quiz Friday!!!! Checking for completion: 2.1 & 2.2
solve for x for the exponential function: 0=2x

2. Any function in the form y = bgx, where b > 0, g> 0 and g not equal to 1 is called an exponential function with base g
Singapore airport
An exponential function with base b is defined by f (x) = abx where a ≠0, b > 0 , b ≠1, and x is any real number. The base, b, is constant and the exponent, x, is a variable.

3. 2.1 Ghost Lake
months
Square feet
1000 1 2 3 4

4. 2.1 Ghost Lake 1000 2000 4000 Y=1000 (2m) 12moths= 2048000 14.6 years
months
Square feet
1000 1
2000 2
4000 3
 8000 4
 16000
Y=1000 (2m)
12moths=
14.6 years

5. 2.2 Chicken Bouillon
Days
Square millimeters 1 2 3 4 5
150,
M= 50(3d)

6. 2.2 Chicken Bouillon M= 50(3d) A) Area: 50mm2 Growth factor: 3
Area after 5 days: 12150
6400mm2 = after 4days (4.4)
B) y-a(b) x
b= 3; growth factor
a= y intercept, where x starts
Days
Square millimeters(mm2) 50 1
150 2
450 (50X9) 3
1350 (50X27) 4
 4050 (50X81) 5
 12150 (50X243)
M= 50(3d)

7. Growth of the garter snake

8. Practice quiz: check work HW for Next Friday December 8 :17,19,21,34,&35; pp 50-55
HW 17,19,21,34,&35 pp 50-55

9. HW # 3,4,7,10,12,14 2.1 & 2.2 for completion pages 33-36
Quiz Friday!!!!

10. Try This: Two years ago I deposited $150 in a savings account whose growth rate was 12%. Create an equation and table.
 Years  1 2 3
 savings
 150
 168
188.28
 210.88
Y= 150(1+.12)x

11. Exponential decay: The graph does not match up with the data, but it is similar to what you would expect from the data below: note most of the + increase of y is in the –X quadrant  X  Y 1
1/3 -1 3 -2 9 -3
 27
43,046,721, Y=3(n-1), 16,777,216
Y= 1/3X or
y= 3-X

12. Don’t Get your name on the board!
TALKING IN CLASS!!!! When teacher is talking = Disrupting the classroom environment
Don’t Get your name on the board!
Raising your hand and waiting your turn. 1st troubling event= 10 min lunch detention and to parents. 2nd troubling event= 20 min lunch detention and call to parents. 3rd troubling event= 20 min lunch detention and meeting with parents.

13. Typical Lesson I’ll Introduce a activity and notes.
Then ask for questions
Then group work with cups, not a toy!!!!
I’ll walk around but also be available up front:
Key to understanding math is to struggle individually with problems and use group members for help and support.