Solve the system of equations.25x2 + 81y2 = 20259y - 5x = 45
A. (0, -9), (5, 0)
B. (0, 5), (-9, 0)
C. (0, 9), (0, -5)
D. (0, -5), (9, 0)
Answer: B
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Solve the problem.If seven times a number is added to 3, the result is six times the number added to 6. Find the number.
A. -9 B. 9 C. -3 D. 3
Write an equation for a function whose graph fits the given description.The graph of f(x) = x2 is shifted 3 units to the left. This graph is then vertically shrunk by a factor of 
and reflected across the x-axis. Finally, the graph is shifted 7 units downward.
A. y = - 
(x + 3)2 - 7
B. y = 
(x - 3)2 - 7
C. y = - 
(x - 3)2 - 7
D. y = - 
(x - 3)2 + 7
The rate of depreciation of a building is given by 
dollars per year, 
. Use the definite integral to find the total depreciation over the first 10 years.
?
A. $260,000 B. $26,000 C. $130,000 D. $13,487 E. $520,000
Graph the given function as a solid line or curve and its inverse as a dashed line or curve on the same set of axes.f(x) = 
A. 
B. 
C. 
D. 