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Charlotte is going to drive from her house to City A without stopping. An equation that determines Charlotte's distance from City $\mathrm{A} t$ hours after leaving her house is $D=-30 t+300$ . What is the $y$ -intercept of the equation and what is its interpretation in the context of the problem?
Answer Attempt 1 out of 2
The $y$ -intercept of the function is $\square$ which represents $\square$ Submit Answer

Studdy Solution
The $y$ -intercept $300$ represents Charlotte's initial distance from City A when $t = 0$ .
In the context of the problem, this means that when Charlotte starts her journey (at time $t = 0$ ), she is 300 miles away from City A.
The $y$ -intercept of the function is $\boxed{300}$ , which represents Charlotte's initial distance from City A, or the distance from City A at the start of her journey.

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