Isabel wrote this mystery problem. the quotient is multiple of 6. the dividend is multiple of 9. the divisor is a factor of 12. write one possible equation to isabel's mystery problem.

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

I’m really confused and need your assist me with this question i’ve never been taught

Me i'm timed right now! a. (0,-5)b. (0,-3)c. (0,3) d. (0,5)