The total worldwide box-office receipts for a long-running movie are approximated by the function
?
?
where 
is measured in millions of dollars and x is the number of years since the movie's release.
?
Select the graph of the function T.
?
A. ? ?
?
?
B. ?
?
C. ?
D. ?
?
Answer: D
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Use < or > for ? to write a true sentence.
? 
A. < B. >
Refer to the figure to solve the problem.A linear programing problem has the objective function 
, which is to be minimized. The following graph shows the feasible set and the straight line of all combinations of x and y for which the cost is $840. Give the linear equation (in standard form) of the line of constant cost c. Then, by inspection, find the vertex of the feasible set that gives the optimal solution. 
A. y = 35 - 
x - 
; C
B. y = 175 - 
x - 
; C
C. y = 175 + 
x + 
; B
D. y = 175 - 
x - 
; B
For the equation, create a table, -3 ? x ? 3, and list points on the graph.y = x + 4
A. 
(-3, 7), (-2, 6), (-1, 5), (0, 4), (1, 3), (2, 2),
(3, 1)
B. 
(-3, -1), (-2, -2), (-1, -3), (0, -4), (1, -5),
(2, -6), (3, -7)
C. 
(-3, 1), (-2, 2), (-1, 3), (0, 4), (1, 5),
(2, 6), (3, 7)
D. 
(-3, -7), (-2, -6), (-1, -5), (0, -4), (1, -3),
(2, -2), (3, -1)
Graph the equation. Identify the coordinates of the vertex.y = x2 + 2x - 3
A. (- 1, - 4) B. (1, 4) C. (1, - 4) D. (- 1, 4)