Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = 3x2 - 4
A. vertex (0, -4); axis x = 0
B. vertex (0, -4); axis x = -4
C. vertex (-4, 0); axis x = -4
D. vertex (0, -4); axis x = 0
Answer: D
Mathematics
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A. -x4 sin x + 4x3 cos x - 14x cos x - 28 sin x B. -x4 sin x + 4x3 cos x - 14x cos x C. -4x3 sin x - 14 cos x + 14 sin x D. x4 sin x - 4x3 cos x + 14x cos x
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Determine whether the pair of vectors is orthogonal.
, 
A. Yes B. No
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Find the exact value by using a sum or difference identity.cos (-135°)
A. - 
B. - 
C. 1
D. - 
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Find the indicated set.Let A = {2, 7, 9, 12, 15}, B = {3, 9, 11, 15, 20}, and C = {4, 8, 9, 10, 12, 14}.Find 
A. {2, 3, 4, 7, 8, 9, 10, 11, 12, 14, 15, 20} B. {9, 12} C. {9, 12, 15} D. {9}
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