(b) Write a linear revenue function that represents the revenue R (x) for selling x items. The linear revenue function is R (x): m. Alternate Answer: R (x) = 275x (c) Write a linear prot function that represents the prot P (x) for producing and selling x items. The linear prot function is P (x): Correct Answer: P (x) = 3.9x 3471 (d) Determine the break-even point. The break-even point is E] items. C(x) = 37x + 674 (b) Write a linear revenue function representing the monthly revenue R (x) for x maintenance calls. The linear revenue function is R (x): . Alternate Answer: v. R (x) = 56x (c) Write a linear prot function representing the monthly prot P (x) forx maintenance calls. The linear prot function is P (x) = E]. E o 10 20 30 4'0 5'0 Number of Days (a) Use the points (24, 17.2) and (40, 22) to write a linear model for these data. (b) Interpret the meaning of the slope in context. The slope of 0.3 means that Dodger's weight increased by 0,3 lb per day V during this period. (c) Interpret the meaning of the y-intenzept in context. The y-intercept is (D, [:l) and indicates that Dodger's weight (Choose one} V he was adopted was E] lb. E Save For Later (a) Use the points (5, 44) and (9, 53) to write a linear model for these data. y= 2.25;: + 32.75 (b) Interpret the meaning of the slope in the context. The slope of 2.25 means that the average height of girls increased by 2.25 in. per year V during this period. (c) Use the model to forecast the average height of ll-yr-old girls. Round all calculations to the nearest hundredth of an inch, if necessary. The average height of ll-yr-old girls is D in. Save For Later