ID from Graph
ID from Equation
ID from Table
Compound Interest
Situation
100

is this exponential? If so, is it decay or growth?

What is exponential growth?

100

Is the following equation exponential? If it is, is it growth or decay? y = 12,000 (1-.001)x

What is exponential decay?

100

Are the following data points exponential? If it is write an equation to model the data. (0, 10), (1, 20) and (2, 40)?

What is yes y = 10 (2)x?

100

This is the equation to find the new balance on $1,000 invested for 5 years, earning 12% annual interest compounded monthly.

What is y = 1000 (1+.12/12)(12*5) --> y = 1000 (1.01)60 ?

100
Sirus is paid $.25 for the first crayfish he catches. Each additional crayfish he gets 5% more. This is how much he is paid for the 200th crayfish he catches.
What is $4,117.28?
200

is this exponential? If so, is it decay or growth?

What is exponential decay?

200

Is the following equation exponential? If it is, is it growth or decay? y = 0.00001 (1+.00001)x

What is exponential growth?

200

Are the following data points exponential? If it is write an equation to model the data. (0, 12), (1, 6), and (2, 3)

What is yes, y = 12 (1/2)x?

200

Sahira purchases $3000 in stocks which earns 9% interest annually and is compounded quarterly. This is the amount her stocks are worth in 20 years rounded to nearest cent.

What is $17,790.44?

200
Sirus is paid $.25 for the first crayfish he catches. Each additional crayfish he gets 5% more. This is how much he will get paid for 200 crayfish that he catches.
What is $82,340.62?
300

is this exponential? If so, is it decay or growth? 

What is not exponential?

300

Is the following equation exponential? If it is, is it growth or decay? y = 12,000 (1-x)50

What is not exponential?

300

Are the following data points exponential? If it is write an equation to model the data. (3, 50), (4, 250) and (5, 1250)

What is yes, y = 2 (5)x?

300

Bryan owes $1900 on a credit card. He is given 24 months to pay off his debt... if he doesn't pay it off the bank will add in all the interest. This is how much would he owe on $1900 for 24 months if the APR was 22.9%.

What is $2,990.79?

300
Bartholomew has 4 cells under a microscope. He notes that they divide every 12 hours. After 10 days, how many cells does he have in his sample?
What is 4,194,304 cells?
400

is this exponential? If so, is it decay or growth?

What is exponential growth?

400

Is the following equation exponential? If it is, is it growth or decay? y = 12,000 (3/2)x

What is exponential growth?

400

Are the following data points exponential? If it is write an equation to model the data. (2, 4) (3, 14) and (4, 26)

What is not exponential?

400

Bilbo purchases a golden ring valued at $50,000. Unfortunately, it depreciates in value by 1% per year compounded annually. This is the value of the ring after 150 years. 

What is $11,072.59?

400
Pierre has a large amount in a Roth IRA account earning 7% interest, how many years will his account balance be more than double what he initially invested?
What is ten years?
500

is this exponential? If so, is it decay or growth?

What is not exponential?

500

Is the following equation exponential? If it is, is it growth or decay? y = 12x2 - 5x + 10

What is not exponential?

500

Are the following data points exponential? If it is write an equation to model the data. (1, 9), (4, 243) and (6, 2187)

What is yes y = 3 (3)x?

500

Sven buys a computer on a credit card. If he paid $1500 on his card and it was earning 18.5% compounded monthly. This is the amount of interest he would have to pay back at the end of the first year just to get his balance back to the original $1500. 

What is $302.28?

500

Susan invests $4,000 in a Roth IRA earning 9.4% annual interest compound monthly. If she plans to retire in 30 years from when she initially invested, this is the amount Bill will have to put into his account (same APR) for 20 years in order to catch up to Susan. (round to the nearest $100)

What is $10,200?

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