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Grade 9 Exponential Growth & Decay Worksheet with Answers
Grade 9 (US) · Year 10 (UK) · Class 9 (India) · Math
Unit 8: Going FurtherAdvanced: Algebra II PreviewCCSS F-LE.A.1Advanced
Exponential growth and decay models, such as population growth, interest and half-life. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
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Practice Sheetaethelsystems.comExponential Growth & Decay
Grade 9 · Math
Name
Class
Date
Learning goal: Advanced: Algebra II Preview · CCSS F-LE.A.1
Directions: Use the pictures to help you. Solve each problem. Show your work, then write your answer in the box.
A population of 200 triples every year. What will it be after 4 years?
Answer: 16200
RememberExponentials and logarithms
- 1
A sample of 200mg decays to half its amount every cycle. How much remains after 4 cycles?
Answer - 2
A population of 1000 doubles every year. What will it be after 4 years?
Answer - 3
A sample of 1000mg decays to half its amount every cycle. How much remains after 2 cycles?
Answer - 4
A sample of 500mg decays to half its amount every cycle. How much remains after 4 cycles?
Answer - 5
A population of 200 triples every year. What will it be after 2 years?
Answer - 6
A sample of 1000mg decays to half its amount every cycle. How much remains after 3 cycles?
Answer - 7
A population of 500 doubles every year. What will it be after 3 years?
Answer - 8
A population of 200 doubles every year. What will it be after 2 years?
Answer - 9
A population of 200 doubles every year. What will it be after 3 years?
Answer - 10
A sample of 100mg decays to half its amount every cycle. How much remains after 2 cycles?
Answer - 11
A sample of 200mg decays to half its amount every cycle. How much remains after 3 cycles?
Answer - 12
A sample of 500mg decays to half its amount every cycle. How much remains after 3 cycles?
Answer
★ Challenge corner for fast finishers
If a + b = 6 and ab = 1, what is a^2 + b^2?
How did I do?
Teacher's comments
Free printable worksheets with answer keys · aethelsystems.com/worksheets/math/9/exponential
Answer key — Exponential Growth & Decay (Grade 9)
- 1.12.5mg
- 2.16000
- 3.250mg
- 4.31.25mg
- 5.1800
- 6.125mg
- 7.4000
- 8.800
- 9.1600
- 10.25mg
- 11.25mg
- 12.62.5mg
- ★34
Answer key (click to show)
- 1.12.5mg
- 2.16000
- 3.250mg
- 4.31.25mg
- 5.1800
- 6.125mg
- 7.4000
- 8.800
- 9.1600
- 10.25mg
- 11.25mg
- 12.62.5mg
- ★34 (challenge corner)
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