If 

y = f(x)

 in the figure, find the following.

The x y-coordinate plane is given. The curve enters the window at the point (−6, −6), goes down and right, changes direction at the approximate point (−5.4, −6.2), goes up and right, changes direction at the approximate point (−2.6, −1.8), goes down and right, changes direction at the approximate point (−1.4, −2.2), goes up and right, crosses the y-axis at the origin, changes direction at the approximate point (1.4, 2.2), goes down and right, passes through the point (2, 2), changes direction at the approximate point (2.6, 1.8), goes up and right, passes through the point (5, 6), changes direction at the approximate point (5.4, 6.2), goes down and right, changes direction at the approximate point (6.6, 5.8), goes up and right, passes through the point (9, 10), changes direction at the approximate point (9.4, 10.2), goes down and right, changes direction at the approximate point (10.6, 9.8), goes up and right, and exits the window at the point (12, 12).

(a)    

f(9) = 

(b)    

f(5) =