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Ch 1.4: Solving Linear Systems Essential Question: How can you determine the number of solutions of a linear system? Review of Linear Systems What does it mean for two lines to be parallel? Same slope 1 = 2 What does it mean for two lines to be perpendicular? Negative reciprocal slopes −1 How would we solve the following system for x and y? 1 = 1 Ch 1.4: Solving Linear Systems Essential Question: How can you determine the number of solutions of a linear system? Topic/Question Notes A Linear equation in 3 variables x, y, and z An equation of the form ax + by + cz = d where a, b, and c are NOT ALL zero. Visualizing Solutions of Systems EX 0: x – 2y + 3z = 9 y + 4z = 7 z=2 SuMmary! Start the HW