Functions f(x) and g(x) are shown below: f(x) g(x) f(x) = −4(x − 6)2 + 3 graph of cosine function which starts at 0 comma 2 and increases to the maximum at pi over 2 then decreases to the minimum at 2 pi where the cycle repeats courtesy of texas instruments using complete sentences, explain how to find the maximum value for each function and determine which function has the largest maximum y-value.