Use a grapher to graph the function.The displacement y of the end of a gear tooth is given by 
Sketch the graph of two cycles of y as a function of t in seconds. Label the point on the horizontal axis which represents the end of the second cycle.
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.Find the area of the triangle determined by the points P(-3, 6, -4), Q(-7, -2, 7), and 
A. 
B. 
C. 
D. 3
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(2x5 - 5x3) + (3x5 + 3x3)
A. 5x10 - 2x6 B. 3x16 C. 3x8 D. 5x5 - 2x3
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 
x4(x2 - 3)
A. 0, multiplicity 4, crosses x-axis;
, multiplicity 1, touches x-axis;
-
, multiplicity 1, touches x-axis
B. 0, multiplicity 4, crosses x-axis
C. 0, multiplicity 4, touches x-axis;
, multiplicity 1, crosses x-axis;
-
, multiplicity 1, crosses x-axis
D. 0, multiplicity 4, touches x-axis
Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.f(x) = x2 from x = 0 to x = 4; n = 4
A. 30 B. 33 C. 27 D. 36