Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (1, 0) for cos xy + yex = 0.
A. 1
B. 
C. e
D. 0
Answer: D
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Write the slope-intercept form of the equation for the line passing through the given pair of points.(-8, 7) and (-4, 0)
A. y = - 
x - 7
B. y = 
x - 7
C. y = 
x + 15
D. y = - 
x + 15
Solve the problem.A rectangular window pane must have a perimeter of 120 centimeters. Write a completely factored polynomial whose values give the area of the window pane if one side is x centimeters long.
A. x2(30 - x) B. x(30 - x)2 C. x(60 - x) D. x(x - 90)
Use the given graph of the quadratic function f to write its formula as 
.
A. f(x) = (x - 3)2 - 4
B. f(x) = 
(x + 3)2 - 4
C. f(x) = 2(x - 3)2 - 4
D. f(x) = 
(x - 3)2 - 4
Find the mode.The last seven computer games sold at the local electronics store cost $20, $36, $46, $36, $49, $36, $49.
A. The mode is $46. B. The mode is $38.90. C. The mode is $36. D. The mode is $49.