Tables
Linear or Exponential Model
Common Ratio
Common Difference
100
Exponential or a linear? Write the equation. 
Linear; The y-values decrease (subtract) by 1 each time!
Equation: y=13-1x
100
Linear or exponential: It costs 40 dollars to join a gym and an additional $10 per month.
Linear
100
The Common Ratio of the Sequence 2, 4, 8, 16, 32...
What is 2?
100
The Common Difference of -20, -23, -26, -29...
What is -3?
200
Exponential or a linear? Write the equation. 
Exponential; the y-values double (multiply by 2) each time!
EQUATION: y = 2(2)^x
200
This is the model that best describes the following information. y = 17x
What is exponential?
200
The Common Ratio of -1/2, 1, -2, 4...
What is -2?
200
The Common Difference of -1.7, -2.0, -2.3, -2.6...
What is -0.3 ?
300
Exponential or a linear? 
Exponential; the y-values are multiplying by 6 each time!
300
This is the model that best describes the following information. {(1,8), (2,12), (3,16), (4,20), (5,24)}
What is linear?
300
The Common Ratio of the Sequence 3, 3, 3, 3...
What is 1?
300
The Common Difference of 18, 22, 26, 30...
What is 4?
400
Exponential or a linear? Write the equation.
n t
0 2
1 14
2 98
3 686
Exponential because the constant ratio is 7.
EQUATION: y = 2(7)^t
400
This is the model that best describes the following information. {(-1,-54), (0,-18), (1,-6), (2,-2), (3,-2/3)}
What is exponential?
400
The Common Ratio of the Sequence -3, -9, -27...
What is 3?
400
The Common Difference of 100, 131, 162, 193...
What is 31?
500
Exponential or a linear? Write the equation.
x y
0 -6
1 -9
2 -12
3 -15
Linear, because the constant difference is -3.
EQUATION: y = -3(x) -6
500
A table that starts at 3 and doubles at each stage
What is exponential
500
These ordered pairs represent an exponential equation (-1, .5),(0,3),(1,18),(2,108). Find the common ratio.
What is 6
500
The Common Difference of 2.53, 2.56, 2.59, 2.62...
What is 0.03?