What do all of these polygons have in common?

a. each appears to have exactly two pairs of parallel sides.
b. each appears to have exactly one pair of parallel sides.
c. each appears to be a quadrilateral.
d. each appears to be a trapezoid.

B. Each appears to have one pair of parallel sides.

Step-by-step explanation:

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).

y=mx+b is the final answer!   : )