Find a rectangular equation for the plane curve defined by the parametric equations.x = t3 + 1, y = t3 - 10; -2 ? t ? 2
A. y = x3; for x in -3 ? x ? 1
B. y = x - 11; for x in -7 ? x ? 9
C. y = - x - 11; for x in -7 ? x ? 9
D. y = - x2; for x in -4 ? x ? 4
Answer: B
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Solve the problem.The profit (in millions of dollars) for Allied Manufacturing can be approximated by 
where x is the year 1989 ? x ? 2009. Approximate the average rate of change over a 4-year period. Round your answer to three decimal places when appropriate.
A. 3.254 million dollars B. 2.814 million dollars C. 0.744 million dollars D. 1.244 million dollars
Explain why the figure is not a polygon.
A. Sides intersect B. Not closed C. Curved side
Use the vertical-line test to determine whether the graph represents a function.
A. Yes B. No
Solve the problem.A ball is thrown directly upward from the top of a building that is 160 feet high. The height of the ball after t seconds is given by the trinomial 
feet. Write this polynomial in factored form.
A. -16(t2 + 3t + 5) B. 16(t2 + 3t + 5) C. -16(t + 2)(t - 5) D. 16(t - 2)(t + 5)