1. Jamie received $25 from her favorite aunt for her birthday. She wants to save her money to purchase a new smart phone. She decided to save the $25 and add $5 from her own money
each week. The amount of money that she has saved is a function of time in weeks. Which
of the following is a function that represents this situation?

which expression represents the approximate length of bc?

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,