Solve the problem.The function f computes the annual interest paid on savings of x dollars with an interest rate of 9%. The graph of f and the horizontal line 
are shown in the figure. Determine the savings amounts that result in (i) an annual interest less than $3.78 and (ii) an annual interest of $3.78 or more. 
A. between $6 and $42; $42 or more
B. $42 or more; $42
C. between $0 and $42; $42 or more
D. $42 or less; between $42 and $48
Answer: C
You might also like to view...
Evaluate.Let a = 3i, b = i + j. Find 6a - b.
A. 17i - j B. i - 17j C. 11i + j D. 17i - 6j
Solve the problem.The gas mileage, m, of a compact car is a linear function of the speed, s, at which the car is driven, for 
For example, from the graph we see that the gas mileage for the compact car is 45 miles per gallon if the car is driven at a speed of 
Find the average rate of change in gas mileage between speeds of 40 mph and 60 mph. Find the average rate of change in gas mileage between speeds of 50 mph and 70 mph.
Find the average rate of change in gas mileage between speeds of 70 mph and 90 mph. Based on your results, do you think that gas mileage is linearly related to speed? Explain. What will be an ideal response?
Solve the problem.The instructions for a bookcase assembly kit said that the fasteners enclosed were 2.6 inches long. When measured, they were 2.65 inches long. Were the fasteners too long or too short? What was the difference?
A. Too long; 0.05 inch B. Too short; 0.05 inch C. Too short; 0.15 inch D. Too long; 0.15 inch
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = -6.2x + 140.4 B. y = 6.2x - 140.4 C. y = 6.8x - 150.7 D. y = -6.8x + 150.7