Multiply and simplify.12 ? 
A. 
B. 144
C. 1
D. 
Answer: C
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Identify where f is increasing and where f is decreasing.f(x) = x2 + 8x
A. increasing: [8, ?); decreasing (-?, 8] B. increasing: (-?, -4]; decreasing [-4, ?) C. increasing: [-4, ?); decreasing (-?, -4] D. increasing: (-?, 8]; decreasing [8, ?)
Find the equation that the given graph represents and give the domain, range, and interval(s) over which the function is increasing and decreasing.
A. P(x) = -x5 - 3x2 + 6; domain: (-?, ?); range: [3.75, ?); Increasing over [-2.21, 0] and [2.21, ?); Decreasing over (-?, -2.21] and [0, 2.21] B. P(x) = x4 - 3x2 + 6; domain: (-?, ?); range: [3.75, ?); Increasing over [-1.24, 0] and [1.24, ?); Decreasing over (-?, -1.24] and [0, 1.24] C. P(x) = x5 + 2x3 + 6; domain: (-?, ?); range: [4.86, ?); Increasing over [-1.64, 0] and [1.64, ?); Decreasing over (-?, -1.64] and [0, 1.64] D. P(x) = x6 - 2x2 - 6; domain: (-?, ?); range: [4.86, ?); Increasing over [-.98, 0] and [.98, ?); Decreasing over (-?, -.98] and [0, .98]
Graph the line containing the given pair of points and find the slope. (1, 7) (0, 0) 
A. 
B. -7
C. 7
D. - 
Identify the conic that the polar equation represents. Also, give the position of the directrix.r = 
A. ellipse, directrix perpendicular to the polar axis 3 right of the pole B. hyperbola, directrix perpendicular to the polar axis 3 right of the pole C. hyperbola, directrix perpendicular to the polar axis 3 left of the pole D. ellipse, directrix perpendicular to the polar axis 3 left of the pole