A 12-inch candle is lit and steadily burns until it is burned out. This is shown

Question

A 12-inch candle is lit and steadily burns until it is burned out. This is shown in the animation below. T0.00 12.00 12 Drag the purple X to adjust the height of the candle, or click here to animate the candle burning. Let a represent the burned length of the candle (in inches) and let y represent the remaining length of the candle (in inches) a. Write an expression (in terms of z) that represents the remaining length of the candle. Preview b. Write a formula that expresses the remaining length of the candle (in inches) in terms of burned length of the candle (in inches). Preview

Explanation / Answer

a) remaining length of candle = total length - burned length =   12 - x

b) remaining length of candle = total length - burned length of candle

y = 12 - burned length of candle or y = 12 - x

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