Choose the equation that matches the graph.
A. f(x) = x2 - 3x - 9
B. f(x) = -x2 + 3x - 9
C. f(x) = -x2 - 3x - 9
D. f(x) = x2 + 3x + 9
Answer: B
Mathematics
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A. (-15a + 5)(5a + 1) B. (3a - 1)(-25a - 5) C. -5(3a + 1)(5a - 1) D. -5(3a - 1)(5a + 1)
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Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
A. 
B. x5
C. x11
D. 
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Evaluate.19 - (-19)
A. 38 B. -38 C. 0 D. 19
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Use the graphs to evaluate the expression.f(3) * g(-2)y = f(x)y = g(x)
A. -3
B. 5
C. 4
D. 
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