To determine which graph shows the relationship between the number of books sold (x) and the total amount of money paid (y), we need to recognize that this relationship is linear. Specifically, if each book costs $10, the total amount of money (y) can be calculated using the formula:
\[ y = 10x \]
In this equation:
- \( y \) is the total amount of money,
- \( x \) is the number of books sold,
- The slope (which represents the cost per book) is 10.
This means that for every additional book sold, the total amount of money increases by $10.
To find the correct graph:
- The y-intercept should be at (0, 0) because if no books are sold, total sales is $0.
- The slope of the graph should be steep, indicating that total sales increase rapidly with each additional book sold.
Look for a straight line that starts from the origin (0,0) and rises steeply. That graph will represent the relationship between the number of books sold and the total sales amount, based on the equation provided.
If you have access to the graphs (A, B, C, D), find the one that fulfills these criteria. If you need further assistance or a specific visual representation, please provide more details on the graphs.
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