Find the domain of the function.f(x) = x - 
A. (-?, 0) or (0, ?)
B. (-?, 7) or (7, ?)
C. (-?, 3) or (3, ?)
D. (-?, ?)
Answer: C
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Provide an appropriate response.In factoring a trinomial in y as (y + a)(y + b), what must be true of a and b, if the coefficient of the last term of the trinomial is negative?
What will be an ideal response?
Solve the equation symbolically.-3.7x + 17.38 = -6.3
A. -11.08 B. -23.68 C. 6.4 D. 3
Match the function with the graph.
A. g(x) = (-x + 6)2 B. g(x) = (-x - 6)2 C. g(x) = -x2 - 6 D. g(x) = -x2 + 6
Solve the problem.In 1995 the United States recovered 21% of its municipal solid wastes through recycling, up from 17% in 1990. Let y represent the percentage recycled and x the number of years since 1990. Find a linear equation that fits this data.
A. y = 0.4x - 17 B. y = 0.8x + 17 C. y = 0.8x + 24 D. y = -0.8x + 7