Determine if the graph of the function is concave up or concave down.f(x) = 2x2 + 2x - 4

A. Concave up
B. Concave down

Answer: A

Mathematics

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Find a parametrization for the curve.The line segment with endpoints (7, 8) and (16, 1)

What will be an ideal response?

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List the indicated feature of the figure.The edges of

A. ABCF, AEDF, ABE, CFD, BCDE B. AB, AE, AF, BE, BC, CD, CF, DE, DF C. Cannot be identified D. A, B, C, D, E, F

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Mathematics

Find the indicated root and express the answer in standard form.Square roots of -1 + i

A.  - i, -  + i
B. 6 - 2i, -6 - 2i
C.  + i, -  - i
D.  + i, -  - i

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Mathematics

Solve. = 9

A. x = -81 B. x = 18 C. x = 81 D. x = 9

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Mathematics