SEOSU46IN SEOSU46IN Math Answered 4. All of the following are true, EXCEPT.A. The boundary line of y> 2x +3 is a solid line.B. The boundary line of x + 3y <or =5 is a solid line.C. 2x + y > or = 1 is a linear inequality.D. (1, 1), is a solution of x+y> 1