정답
$y = a(1 + r)^t$ for growth and $y = a(1 - r)^t$ for decay, where $a$ is initial amount and $r$ is rate.
해설
If an item depreciates by $15\%$ annually, the multiplier is $(1 - 0.15) = 0.85$, yielding $y = a(0.85)^t$.
홈 / 라이브러리 / Digital SAT: Comprehensive Practice (Math & Reading-Writing) / AI 플래시카드
What is the exponential growth and decay model formula on the SAT?
덱 'Digital SAT: Comprehensive Practice (Math & Reading-Writing)'의 플래시카드.