Concept explainers
(a)
To calculate: The model for average number of visitors “v” as a function of the monthly advertising expenditure “c” if, the internet advertising expenditure is increased from
(b)
To calculate: The number of visitors when the OHaganBooks.com invested
(c)
To calculate: The expenditure required on advertising so that the visitors would have increased to
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Applied Calculus
- Demand for Candy Bars In this problem you will determine a linear demand equation that describes the demand for candy bars in your class. Survey your classmates to determine what price they would be willing to pay for a candy bar. Your survey form might look like the sample to the left. a Make a table of the number of respondents who answered yes at each price level. b Make a scatter plot of your data. c Find and graph the regression line y=mp+b, which gives the number of respondents y who would buy a candy bar if the price were p cents. This is the demand equation. Why is the slope m negative? d What is the p-intercept of the demand equation? What does this intercept tell you about pricing candy bars? Would you buy a candy bar from the vending machine in the hallway if the price is as indicated. Price Yes or No 50 75 1.00 1.25 1.50 1.75 2.00arrow_forward5. Use the table feature on a graphing calculator or a spreadsheet to develop a table that shows how much of the drug is present in a patients system at the end of each 1/2 hour time interval for 10 hours for the model found in Exercise 2a. A chart such as this provides the health care worker with immediate information about drug levels. Exercise: 2. A drug is given to a patient by IV infusion at a drip rate of 300mg/hr. The half-life of this drug is 3 hours. a. Find a model of the amount of drug in the bloodstream t hours after the IV infusion begins.arrow_forwardHOW DO YOU SEE IT? Discuss how well a linear model approximates the data shown in each scatter plot.arrow_forward
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