SOLUTION: Solve the following system of equations by graphing to find the point of intersection. Round to the nearest tenth, if necessary. y = 8x – 10 y = –4x + 20

Algebra ->  Systems-of-equations -> SOLUTION: Solve the following system of equations by graphing to find the point of intersection. Round to the nearest tenth, if necessary. y = 8x – 10 y = –4x + 20      Log On


   

Question 892912: Solve the following system of equations by graphing to find the point of intersection. Round to the nearest tenth, if necessary.

y = 8x – 10
y = –4x + 20
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!

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Algebraically,
8x-10=-4x%2B20
12x=30
x=30%2F12
x=5%2F2
Then,
y=8%285%2F2%29-10
y=20-10
y=10
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The intersection point is (5/2,10).