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Choose three options which are examples of exponential growth or decay.

A) The number in the sequence 2,6,24,120,720……

B) The amount of money in a bank account which earns compound interest.


C) The radioactivity of a sample of a radioactive isotope.

D) The savings of a person who saves £200 per month.

E) The temperature of water which is being heated in a kettle in a kettle to boiling point.

F) The numbers in the sequence 16,32,64,128,……


Are the three options B , E and C is this correct ??



Not E. That is linear. What about 2^n (F).

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asked by katie

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