Given g(x) and (g?f)(x), find f(x). g(x) = 2x2 - 7, (g ? f)(x) = 2x2 - 20x + 43
A. f(x) = x + 3
B. f(x) = x - 5
C. f(x) = x - 4
D. f(x) = x + 7
Answer: B
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Refer to the weighted voting system 
and the Shapley-Shubik definition of power. (The four players will be called P1, P2, P3, and P4.)Which player in the sequential coalition 
is pivotal?
A. P2 B. P3 C. P4 D. P1 E. none of these
Provide an appropriate response.Using the following diagram, prove that ?ADB ~ ?BDC.
What will be an ideal response?
Find the equation of a line with the given slope and y-intercept.Slope 
, y-intercept (0, -1)
A. y = 
x + 1
B. y = - 
x + 1
C. y = - 
x - 1
D. y = 
x - 1
For the given pair of points, find the equation of the line 
that goes through the points by solving a system of equations.(1, -2) and (-8, 7)
A. y = -x - 3 B. y = -x - 1 C. y = x - 1 D. y = -x - 2