LESSON 14-1 PRACTICE 19. Create a table of values to determine the solution to the following system of equations. y=-x-2 3 20. Determine which of the points ((1, -2).(-1,2), (1, 2), (1, -2)], 1f any, are solutions to the system of equations. 2x + y = -1 21. Graph each of the equations below and use your graph to determine at which value of x the values of y are the same. [2x-12y = -3 (x + 4y = -4