Learning Task 2. Without graphing, tell whether the graphs of the system of equations are parallel, perpendicular, intersecting or coinciding. Do it in your notebook. 1.y = x + 7 and y = -x + 2 2.Y = 5x and y = 5x - 1 3. 2x + y = 1 4. Y = 2x + 3 and 2y + 4x = 2 and y = -x - 4​