A candle burned at a steady rate. After \( 32 \) minutes, the candle was \( 11.2 \) inches tall. Eighteen minutes later, it was \( 10.75 \) inches tall. Use an equation in point-slope form to determine the height of the candle after \( 2 \) hours.
Pregunta
Answer
y = -0.025x +11.2 + 0.025*32 = -0.025x + 12
-0.025*120 + 12 = 9 inches
so the height of the candle after 2 hours is 9 inches.
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