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Math·Algebra·Linear functions

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Eli used wax to make candles. The function $f(x)=-15x+60$ approximates the weight, in ounces, of wax Eli had remaining after making $x$ candles. Which statement is the best interpretation of the $y$-intercept of the graph of $y=f(x)$ in the $xy$-plane in this context?

A

Eli had approximately 15 ounces of wax when he began to make the candles.

B

Eli used approximately 15 ounces of wax for each candle.

C

Eli had approximately 60 ounces of wax when he began to make the candles.

D

Eli used approximately 60 ounces of wax for each candle.