Use Linear Programming to Solve Problems
-Objective Function
Constraints $$z = 7 x + 6 y$$

Multiple Choice

Use Linear Programming to Solve Problems
-Objective Function
Constraints
$$z = 7 x + 6 y$$
$$\begin{array} { l } x \geq 0 \\y \geq 0 \\3 x + y \leq 21 \\x + y \leq 10 \\x + 2 y \geq 12\end{array}$$

A) Maximum 65.5; at $( 5.5,4.5 )$
B) Maximum 60; at $( 6,3 )$
C) Maximum 68; at $( 8,2 )$
D) Maximum 66; at $( 6,4 )$