Solve each of the following systems by graphing and determine the solution/s: 1. 4. Зх — у 3D 2 x + 2y = 10 (4. 1) x = 2, y = 4 5. Зх- 2у %3D 12 Intersection at one point only-exactly one solution 7х + 2у 3D 8 2. x = 2, y = -3 6. т + 2n %3 4 2m + 4n = -8 No solution (parallel lines) 7. Зи + 5v %3D15 Lines are parallel (each has slope -no solutions 6u + 10v = -30 3. No solution (parallel lines)

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