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 and interpret the average rate of change in gas mileage between speeds of 40 mph and 90 mph.
A. -0.75 miles per gallon/mph;
Between speeds of 40 mph and 90 mph, gas mileage decreases at a rate of 0.75 miles per gallon for each 1 mph increase in speed.
B. -0.5 miles per gallon/mph;
Between speeds of 40 and 90 mph, speed decreases at a rate of 0.5 miles per hour for each 1 mpg increase in gas mileage.
C. -0.5 miles per gallon/mph;
Between speeds of 40 mph and 90 mph, gas mileage decreases at a rate of 0.5 miles per gallon for each 1 mph increase in speed.
D. 0.5 miles per gallon/mph;
Between speeds of 40 and 90 mph, gas mileage increases at a rate of 0.5 miles per gallon for each 1 mph increase in speed.
Answer: C
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Decide whether the dose is reasonable or unreasonable. If it is unreasonable, indicate whether it is too much or too little.Take an aspirin weighing 0.003 kilograms.
A. Unreasonable, too little B. Reasonable C. Unreasonable, too much
Graph the exponential function.y = 
x + 3 
A. 
B. 
C. 
D. 
Simplify the complex fraction using the Division Method.
A. 
B. 
C. 
D. 
Determine whether the argument is valid or invalid.p ? q
p
A. Valid B. Invalid