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10-68.

    Graph each plane in three dimensions.

  1. Solve for each intercept. You can do this by substituting for two of the variables and solving for the remaining variable.

      
                                    
                                     

      
                                
                                   

      
                                    
                                     

    Now that you know the , , and -intercepts, plot the points, connect them, and shade them to look like a plane.

  1. Solve for the intercepts like you did in part (a).
    Note that there is no -intercept.