Indicate the answer choice that best completes the statement or answers the question.
Complete each of the following.
a. Graph each function by making a table of values.
b. Determine the consecutive values of x between which each real zero is located.
c. Estimate the x-coordinates at which the relative maxima and minima occur.

LABOR A town’s jobless rate can be modeled by (1, 3.3), (2, 4.9), (3, 5.3), (4, 6.4), (5, 4.5), (6, 5.6), (7, 2.5), and (8, 2.7). How many turning points would the graph of a polynomial function through these points have? Describe them.

a. 8: 4 relative max. and 4 relative min.
b. 4: 1 relative max. and 3 relative min.
c. 4: 3 relative max. and 1 relative min.
d. 4: 2 rel. max. and 2 rel. min.