Factor.2x2 - 2x - 12
A. 2x2 - 2x - 12
B. (2x + 4)(x - 3)
C. 2(x - 2)(x + 3)
D. 2(x + 2)(x - 3)
Answer: D
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A fixed point of f is a value of x that satisfies the equation f(x) = x; it corresponds to a point at which the graph of f intersects the line y = x. Find all the fixed points of the function. Use preliminary analysis and graphing to determine good initial approximations. Round approximations to six decimal places.f(x) = 3 sin x on [0, 2?]
A. x = 0 and x ? 2.389974 B. x = 0 and x ? 2.167752 C. x = 0 and x ? 2.278863 D. x = 0 and x ? 1.756641
Find u ? v.u = 
, v = 
A. 6 B. 0 C. -12 D. 12
Use the vertical line test to determine whether the graph represents a function.
A. not a function B. function
Find the focus and directrix of the parabola.- 
x2 = y
A. F: (0, -1); D: y = -1 B. F: (0, 1); D: y = -1 C. F: (0, -1); D: y = 1 D. F: (-2, 0); D: x = 1