Question 1202528
using the desmos.com calculator at <a href = "https://www.desmos.com/calculator" target = "_blank">https://www.desmos.com/calculator</a>, you would graph the opposite of the constraint inequalities and evaluate the objective function at the corner points of the feasible region, which is the unshaded area of the graph.


here's what the graph looks like.


<img src = "http://theo.x10hosting.com/2023/053001.jpg">


your minimum value is at 9,0) where the objective function equals 18.
there is no maximum value becauswe thee are no corner points other than at the minimum value.


all constraints need to be true at the corner points.


at (9,0), 5*9 + 0 >= 5 is true.
at (9,0), 5 + 0 is also true.