ABCD is a square and AD=15. Round to the TENTH.
B
BC= 15
AC=
ED
D
m m m

i got 10.28 but that rounds up to 10.3

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

the first domain and range set to the left is matched with the top relation, and the second set the set in the middle goes with the bottom relation.