SAT-Style: Exponential Growth Word Problems

SAT Math · Axiom Academy

Exponential Growth Word Problem Growth factor: b = 2 (it doubles) For problems with doubling time (or half-life), use: where DT is the doubling time period (3 hours) Let's verify by counting doubling periods: Hour 3 (1st doubling): 500 × 2 = 1,000 Hour 6 (2nd doubling): 1,000 × 2 = 2,000 Hour 9 (3rd doubling): 2,000 × 2 = 4,000 Hour 12 (4th doubling): 4,000 × 2 = 8,000 Hour 15 (5th doubling): 8,000 × 2 = 16,000 ✓

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