Determine whether the point (4, 9) is in the feasible set of this system of inequalities 5x + 4y < = 63 x + y < = 12 6x + 9y< = 97 x> = 0 y> = 0

We simply have to plug the values in all inequalities, and see if the result is true for all inequalities in the system:

So, the system becomes

So, only the first inequality is true, and thus the point is not in the feasible set of this system of inequalities

is only a line? i think so