Question

Which point lies in the solution set for the following system of inequalities?
x-y>3
x+2y<6

A. (7,1)
B. (3,4)
C. (-2,2)
D. (4,-2)

Answer 1

Madam Where are the equations.

Answer 2

Plug the points into your inequalities and see if they hold, e.g. using (A) in our second inequality yields:$$7+2(1)<6\\9\not\lt6$$

Answer 3

You want a point that works for both inequalities.

Answer 4

I get it now. Thank you :)