As a speeding train crosses a trestle over a deep gorge, a child drops his toy plane from the window. The path of the toy plane is modeled by 
, where y is the height above the floor of the gorge and distances are measured in feet. How far will the toy plane travel horizontally before it hits the bottom of the gorge? [Note: The toy plane does not glide; it "drops like a rock."]
A. 6.0 ft
B. 10 ft
C. 25.7 ft
D. 110 ft
E. 660.0 ft
Answer: C
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Find the greatest common factor of the monomials.64x10y3 and 56x6y10
A. 8x6y3 B. 8x10y10 C. 4x4y7 D. 448x10y10
Solve the inequality. Express your answer using interval notation. Graph the solution set.-2(4x + 4) < -10x - 14
A. (-?, -3]
B. (-3, ?)
C. (-?, 11]
D. (-?, -3)
Give two parametric representations for the plane curve.y = 
x + 6
What will be an ideal response?
Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. If necessary, round answers to two decimal places.f(x) = x4 - 5x3 + 3x2 + 9x - 3; (-5, 5)
A. local minimum at (-0.61, -5.64) local maximum at (1.41, 6.12) local minimum at (3, -3) B. local minimum at (-3, -3) local maximum at (-1.32, 5.64) local minimum at (0.57, -6.12) C. local minimum at (-1, -6) local maximum at (1, 6) local minimum at (3, -3) D. local minimum at (-0.57, -6.12) local maximum at (1.32, 5.64) local minimum at (3, -3)