1. Racetracks often charge an annual membership fee and an entry fee per race. One racer paid a total of $76 after 3 races. Another racer paid a total of $124 after 7 races. A. Sketch a graph that models the situation. Explain why it is okay to draw a line and what it represents even though this is a discrete function. B. What are the domain and the range of the function? Explain your reasoning. C. Determine the slope of the function. What does this represent in the situation? D. Determine the initial value. What does this represent in this situation? E. Write a linear function that models the situation.

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