The graph of a function f is given. Use the graph to answer the question.How often does the line y = 5 intersect the graph?

A. once
B. twice
C. three times
D. does not intersect

Answer: C

Mathematics

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Find the quadratic approximation of f at x = 0.f(x) = tan-1 3x

A. Q(x) = 1 - 3x2
B. Q(x) 1 + x2
C. Q(x) = 3x
D. Q(x) = 1 + 3x2

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Mathematics

Simplify the expression.10(y + 9) - 4

A. 10y + 5 B. 10y + 86 C. 19y - 4 D. 10y + 50

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Mathematics

Perform the indicated operation. Write the result in standard form.(2 - 2i) + (6 + 8i)

A. -8 - 6i B. 8 - 6i C. 8 + 6i D. -4 + 10i

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Mathematics

Solve the equation by factoring.x2 + x - 56 = 0

A. {7, 8} B. {-8, 7} C. {-8, -7} D. {-7, 8}

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Mathematics