Algebra 2, 2008

 PAGE: 120 SET: Exercises PROBLEM: 1

The equation are inslope-intercept form y = mx + b.

Make a table to find the solution that satisfies both equations.

 x y1 = 2x + 9 y1 y2 = – x + 3 y2 (x1, y1) (x2, y2) – 1 y1 = 2(–1) + 9 7 y2 = (–1) (–1) + 3 4 (–1, 7) (–1, 4) 0 y1 = 2(0) + 9 9 y2 = (–1) (0) + 3 3 (0, 9) (0, 3) 1 y1 = 2(1) + 9 11 y2 = (–1) (1) + 3 2 (1, 11) (1, 2) – 2 y1 = 2(–2) + 9 5 y2 = (–1) (–2) + 3 5 (–2, 5) (–2, 5)

Since the ordered pair satisfying the both equations,

the solution of the sysytem is .

The solution of the sysytem is .

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