In p(k) = K^2 + k - 4, which is the independent variable? A. -4
B. 4
C. k
D. k^2
E. p​

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints