Exponential growth and decay worksheets Grade 11

How to do it

Doubling: multiply by 2 for each doubling time. Half-life: halve for each half-life. Interest: multiply by (1 + rate) each year.

Example problems

1. $5000 is invested at 50% interest, compounded once a year. How many dollars is it worth after 2 years?$11250$Show answer
2. A town of 300 people doubles in size every 5 years. How many people live there after 15 years?$2400$Show answer
3. $2000 is invested at 10% interest, compounded once a year. How many dollars is it worth after 2 years?$2420$Show answer
4. A sample of 160 grams has a half-life of 6 days: every 6 days, half of it is left. How many grams are left after 18 days?$20$Show answer

Exponential and logarithmic functions

1. Solving exponential equations with a common base
2. Evaluating logarithms
3. Solving logarithmic equations with the definition
4. Logarithm rules with numbers
5. Expanding and condensing logarithms
6. Change of base formula
7. Solving exponential equations with logarithms
8. Solving logarithmic equations
9. Exponential growth and decay