SOLUTION: solve the system of equations by graphing. Then Classify the system. x+y=13 x-y= -5

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Question 224441: solve the system of equations by graphing. Then Classify the system.
x+y=13
x-y= -5
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the system of equations by graphing. Then Classify the system.
x+y=13
x-y= -5

Step 1. Graph the two lines as shown below

graph%28400%2C+400%2C+-10%2C10%2C-15%2C15%2C13-x%2C+x%2B5%29

Step 2. Based on the graph the solution is x=4, y=9 or point (4,9)

Step 3. Check if (4,9) satisfies the original solutin

4+9=13 which is a true statement
4-9=-5 which is a true statement

Step 4. ANSWER: The solution is (4,9). So the system of equations are independent, consistent and unique.

I hope the above steps were helpful.

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Good luck in your studies!

Respectfully,
Dr J