the graph below of the function f(x): 10 Using the graph, what is the value of J (2) Cannot be determined. 01 1(2) =8 Of ' ( 2) = 1.3 Of ' ( 2 ) = 16 Q 3. A commercial train travels according to the formula d() = 31, where d is the distance traveled in miles and t is the time in hours. What is the meaning of d (279)? It takes the train 9 hours to travel 279 miles. A commercial train travels at an average speed of 279 miles per hour. A commercial train travels at an average speed of 31 miles per hour. It takes the train 279 hours to travel 9 miles. 4. Is the function /(x) =x invertible? If so, find the inverse S'(x) Of ( x ) = - x Of ( x ) = 2x (x) is not invertible. Of( x ) = x