Algebra-1

Question Analysis
This question tests the student's ability to interpret a real-world scenario and express it as a rate of change. The rate of change is negative, indicating an inverse relationship between the number of books sold and the price.

Key Concept Explanation
A negative rate of change in this context means that as the price increases, the number of books sold decreases. The rate of change is the ratio of the change in the number of books sold to the change in price.

Step-by-step Solution
1. Identify the change in the number of books sold: -3 books
2. Identify the change in price: 50 dollars
3. Calculate the rate of change:

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