On Pennys 15th birthday, her grandmother gave her a large jar of quarters. Penny decided
Chapter 4, Problem 4(choose chapter or problem)
On Pennys 15th birthday, her grandmother gave her a large jar of quarters. Penny decided to continue to save quarters in the jar. Every few months she counts her quarters and records the number in a table like this one. Predict how many quarters shell have on her 18th birthday. a. Make a scatter plot of the data on your calculator. Is there a pattern? b. Select two points through which a line of fit would pass. Find the slope of the line between these points. c. What is the real-world meaning of the slope? d. Use the slope you found in 4b to write an equation of the form y = bx. Graph this line on the scatter plot.What do you need to do to this line to better fit the data? e. Estimate the y-intercept and write an equation in the form y = a + bx. Graph this new line. f. What is the real-world meaning of the y-intercept? g. Use your equation to predict how many quarters Penny will have on her 18th birthday.
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