Advanced MathMediumPercent increase over two periods of compound growth
Advanced Math practice question
The function h is defined by h(t) = 50(1.2)ᵗ. By what percent does h increase from t = 0 to t = 2?
Answer: 44
h(0) = 50 and h(2) = 50 × 1.44 = 72. The increase is 22 out of 50, which is 44%.
Common wrong answers
- If you answered 20
- 20 is the percent increase over one period.
- If you answered 40
- 40 adds 20% twice, ignoring compounding.
- If you answered 144
- 144 is the percent of the original that h(2) represents, not the increase.
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