Karen had $3000 in her bank account. Her monthly rent is $800-
She wrote rent checks for June,
July, and August. Write an
expression to show how her bank
account changed, solve, and
explain the change?

true !

step-by-step explanation:

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,

#12 the answer is the third option