How do I solve each system by graphing Please help?

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How do I solve each system by graphing Please help?

2x+y=8
2x-y=0

2006-10-25 14:54:24 · 2 answers · asked by lailani l 1 in Science & Mathematics ➔ Mathematics

2 answers

Steps:

1. Isolate y in BOTH equations.

2. Graph each linear equation on the same xy-plane.

3. The solution will be where the two lines meet.

Guido

2006-10-25 15:03:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋

2x + y = 8
2x - y = 0

4x = 8
x = 2

2(2) + y = 8
4 + y = 8
y = 4

ANS : (2,4)

for a graph, go to www.quickmath.com, click on Plot under Equations, then click on Advanced.

2006-10-25 22:43:29 · answer #2 · answered by Sherman81 6 · 0⤊ 0⤋