If the following is a polynomial function, then state its degree and leading coefficient. If it is not, then state this fact.f(x) = -5x3 - 16 + 13x4 + x9 - 3x2
A. Degree: 3; leading coefficient: -5
B. Degree: 9; leading coefficient: -5
C. Not a polynomial function.
D. Degree: 9; leading coefficient: 1
Answer: D
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Provide an appropriate response.An electronics company kept comparative statistics on two products, A and B. For years 0 to 8, the total number of Product A ever sold (in thousands) is given by the function 
, where x is the number of years since year 0. For that same period, the total number of Product B ever sold (in thousands) is given by the function B(x) = -30x + 434, where x is the number of years since year 0. Interpret A(1.8) and B(1.8).Total Number of Product A and Product B Ever Sold
A. Product B sold 1.8 times as many as Product A. B. When 383,000 of Product A had been sold, Product B had sold 1.8 times as many. C. At about 1.8 years (to the nearest tenth) from year 0, both products had sold the same amount. D. At some point between year 0 and year 8, both products had sold 1800 each.
Solve the problem.The deflection y (in m) of a 7-m beam as a function of the distance x (in m) from one end is 
Find the value of d2y/dx2 (the rate of change at which the slope of the beam changes) where x = 4.5 m.
A. 0.80 B. 0.17 C. 0.14 D. 0.82
Use an inequality to describe the interval of real numbers.(-8, 2]
A. -8 < x ? 2 B. x ? 2 C. -8 < x < 2 D. -8 ? x ? 2
Find the equation of the tangent line to the graph of f at the given point.f(x) = x2 + 11x - 15 at (1, -3)
A. y = 2x + 11 B. y = 11x + 15 C. y = 13x - 16 D. y = 11x