Consider the equation 3y 2 6x 5 9. Write another equation that forms a system of equations with the equation above that has either one solution or infinitely many solutions. Without graphing, explain how you know that your system has one solution or infinitely many solutions. Justify your equation by graphing the system of equations. Explain how your graph supports your choice of equation. Show your work. Use words, models, and numbers to explain your answers.