Let (4.0, 8.32) represent an interval on the number line. complete parts (a) and (b) below. (a) find the value that is in the middle of the interval. the value is nothing. (type an integer or a decimal. do not round.) (b) find the distance from the middle of the interval to either endpoint. the distance is 4.32. (type an integer or a decimal. do not round.)

To find the extreme values of a function f(x. y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x, y)=xy