What is the area of this quadrilater

33ft^2

Step-by-step explanation:

1) area of triangle formula:(BH)/2

(we will find the area of those two triangle seperately and add them up:

H(of larger triangle)= 8

B=6

(8*6)/2

48/2=24

H(of smaller)=3

B=6

(3*6)/2

18/2=9

24+9=33

  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).