1. Which of the following is NOT linear equation in two variables? Ax+y=3 B.x+y> 10 C. x - y = 1 D. 2x+3y=4 2. Which of the following is a linear inequality in two variables? Ax+y<4 B.2x + 3y = 10 C.y≥1 D.x5 3. Which of the following describes the graph of a linear inequality in two variables? A. Boundary Line B. Dash line C. Hall-plane D. Solid line