I NEED SOME HELP ON THIS!! Matthew drove 15 and 1/2 miles in 1/4 hour. What was Matthew´s average speed? Group of choices
A. 60 miles per hour
B. 62 miles per hour
C. 90 miles per hour
D. 124 miles per hour

c

Step-by-step explanation:

i dont get it. where are the "descriptions"?

  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).