Solve.Let f(x) = 2 + 3
. Find x when f(x) = 11.
A. 8
B. - 
C. -8
D. 
Answer: A
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Solve the problem.The average price for a quart of orange juice between 2002 and 2012 can be approximated by 
where x is the year. Evaluate P(2010) and interpret the result.
A. P(2010) = 2.78; the average price of a quart of orange juice in 2010 was $2.78. B. P(2010) = 2.69; the average price of a quart of orange juice in 2010 was $2.69 more than in 2002. C. P(2010) = 1.95; the average price of a quart of orange juice in 2010 was $1.95. D. P(2010) = 2.69; the average price of a quart of orange juice in 2010 was $2.69.
Provide an appropriate response.Describe how the graph of 
differs from the graph of 
.
What will be an ideal response?
Solve the problem.The altitude above sea level of an airplane just after taking off from an airport on a high plateau is given by the linear function y = 800x + 2179, where y is in feet and x is the time in minutes since take-off. Find and interpret the slope and y-intercept.
A. m = 2179; The minutes since take-off increases 2179 for every foot of altitude. 
The minutes that the plane takes to get to the altitude of the airport from sea level.
B. m = 800; The altitude of the airplane increases 800 feet every minute. b = 2179; The altitude of the airport where the airplane took-off is 2179 feet above sea level.
C. m = 2179; The altitude of the airplane increases 2179 feet every minute. b = 2179; The altitude of the airport where the airplane took-off is 800 feet above sea level.
D. m = 800; The minutes since take-off increases 800 for every foot of altitude. 
; The minutes that the plane takes to get to the altitude of the airport from sea level.
Use the formula for the number of subsets of a set with n elements to solve the problem.A village has 4 fire engines. If a radio dispatcher receives a call, depending on the nature of the situation, no engines, one engine, two engines, three engines, or all four engines can be sent to a fire. How many options does the dispatcher have for sending the fire engines to the scene of the caller?
A. 8 B. 16 C. 15 D. 7