The graph and equation of the function f are given a Use the graph to find any values at which f has a relative maximum and use the equation to calculate the relative maximum for each value b Use the graph to find any values at which f has a relative minimum and use the equation to calculate the relative minimum for each value a Select the correct choice below and if necessary fill in the answer boxes to complete your choice OA The function f has a relative maxima maximum at and the relative maxima maximum are is Use a comma to separate answers as needed OB The function has no relative maxima f x 2x 6x 18x 6 E QO 5 5 1 by 60 60 10