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Students investigate the total cost of a private party at three restaurants and then model the cost of a party at each restaurant with the graph of a linear function.
Students are given a chart showing the cost of private parties with different numbers of guests.
They are prompted to make a scatter plot of this data, then select the x and y variables, and draw a line through the points and click on two points to draw the line.
Next, students find the y‑intercept of the line two ways: by estimating where the line crosses the y-axis and by viewing a function table.
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