Select the graph of the function 
. Compare the graph of this function with the graph of 
.
?
A. ?
Vertical shrink.
B.
?Vertical stretch.
C.
?
?
Vertical stretch and reflection in the x-axis.
D.
?
?
Vertical shrink.
E. ?
?
?
Vertical stretch and reflection in the x-axis.
Answer: B
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Solve the problem.A spherical water tank with an inner radius of 7 m has its lowest point 1 m above the ground. It is filled by a pipe that feeds the tank at its lowest point (see figure). Neglecting the volume of the inflow pipe, how much work is required to fill the tank if it is initially empty? Express the answer in terms of ?. 
A. 
? J
B. 
? J
C. 
? J
D. 
? J
Solve the system by graphing. Check the coordinates of the intersection point in both equations.
A. {(x,y) 
}
B. ?
C. {(6, 2)}
D. {(2, 6)}
Find the axis of symmetry of the parabola defined by the given quadratic function.f(x) = 4 - (x + 3)2
A. x = -3 B. x = -4 C. x = 3 D. x = 4
Translate the phrase to an algebraic expression. Let x represent the unknown number.The quotient of 72 and a number
A. 
B. x - 72
C. 72 - x
D. 