Find the average rate of change for the given function from x = 1 to x = 2

Which statement about the relative areas of triangle abd and triangle xyz is true

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

How do i do this activity, is appreciated