function given in the graph below and that f is a piecewise function whose parts are either portions of lines or portions of circles as pictured 6 5 4 3 A 6 A 1 A 4 A 6 6 Let A be the function defined by A z f t dt X b Compute the followings A 6 1 a What does the Second FTC tell us about the relationship between A and f Write an equation to describe the relationship A 0 X 6 5 X 3 2 1 2 3 5 X c Compute the followings 4 X a