Arectangular room must have a perimeter of 70 feet and an area of at least 200 square feet. describe the possible widths of the room. round your answers to the nearest tenth of a foot. the approximate width of the room is at least feet and at most feet.

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,