Answer: 56 will be the maximum point for this interval.
Explanation: since maxima is a point in which a function within a range gives maximum value. And its value is called maximum value of the function over an interval.
since, we can write a function in the form of y=f(x), where y is dependent variable and x is independent variable. If that function is defined on an interval
and for a point c, in which

if for point c the function gives the maximum value in compare to other points then we can say that f(c) is the maximum value of function f(x) and c is the maxima of the function.
thus according to the graph it is clear that the function within the interval
function is giving maximum value which is 56 at the point -1.6.
thus maximum value will be 56.