Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.5x2 - 30x + 40
A. 5(x - 2)(x - 4)
B. (x - 2)(5x - 20)
C. 5(x - 8)(x + 1)
D. Prime
Answer: A
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Find the volume of the solid generated by revolving the region about the y-axis.The region in the first quadrant bounded on the left by the circle x2 + y2 = 16, on the right by the line 
, and above by the line y = 4
A. 64?
B. 
?
C. 
?
D. 16?
Find a rectangular equation for the curve and describe the curve.x = 
, y = t; -4 ? t ? 4
A. x = 
; portion of a circle with radius 4
B. x = 
; circle with radius 4
C. y = x2 - 16; portion of a parabola
D. y = -x2 + 16; portion of a parabola
Sketch the graph of the function. Describe how the graph can be obtained from the graph of a basic logarithmic function.f(x) = 3 - 5 log(x - 4)
A. Shift y = log x right 4 units, stretch it
vertically, reflect it over the x-axis, and
shift up 3 units
B. Shift y = log x left 4 units, stretch it
vertically, and shift down 3 units
C. Shift y = log x left 4 units, stretch it
vertically, reflect it over the x-axis, and
shift up 3 units
D. Shift y = log x left 4 units, stretch it
vertically, and shift up 3 units
Use the given table of y = ax2 + bx + c to solve ax2 + bx + c = 0.
A. -1, 3 B. -1, 1.5 C. 1, -3 D. 0, 1.5