Consider the function f x x 9x a Graph f on the interval x 20 b For what value b 0 is ff x dx 0 c In general for the function f x x ax a 0 for what value of b 0 as a function of a is a Choose the correct graph below 2009 40 b b Type an integer or decimal B 200 40 is ff x dx 07 0 Q OC 200 40 Q OD 2007 40