Solve the problem.Find f(-4) when f(x) = -x2 + 2x - 1.

A. 9
B. 23
C. - 25
D. 7


Answer: C

Mathematics

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Solve the problem.Two bacteria are placed in a petri dish. The population will triple every hour. How many bacteria are in the dish eight hours after the two bacteria are placed in the dish?

A. 48 B. 1024 C. 13 D. 13,122

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Name the highlighted angle using the three-letter form of identification.

A. ?BTF or ?FTB B. ?LTF or ?FTL C. ?T D. ?HTF or ?FTH

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Find the zero of the linear function.f(x) = x + 3

A. 0 B. 3 C. 6 D. -3

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Find the vertex, focus, and directrix of the parabola with the given equation.(y + 1)2 = 16(x + 3)

A. vertex: (-3, -1)   focus: (-7, -1)   directrix: x = 1 B. vertex: (3, 1)   focus: (7, 1)   directrix: x = -1 C. vertex: (-3, -1)   focus: (1, -1)   directrix: x = -7 D. vertex: (-1, -3)   focus: (3, -3)   directrix: x = -5

Mathematics