Posted by **Anonymous** on Sunday, April 25, 2010 at 5:03pm.

is each ordered pair a solution of the given system? write yes or no.

1. y=6x+12

2x-y=4

(-4, -12)

2. Y= -3x

x=4y+1/2

(-1/2,3/2)

3.x+2y=2

2x+5y=2

(6,-2)

4. Solve the system by graphing. Check your solution.

x + y=3

x - y=-1

- math -
**Mike**, Sunday, April 25, 2010 at 6:57pm
In order for an ordered pair to be a solution to a system of equations, it must satisfy all equations in the system. So, when you plug the x and the y into each equation, they BOTH must be true to be a solution. If one is true and the other is false, its NOT a solution.

For example, your 3rd question . .

-------------------------------------

Is (6,-2) a solution?

x+2y=2

6+2(-2)=2?

6-4=2?

2=2 (TRUE!)

~~~~~~~~~~~~~~~~~

2x+5y=2

2(6)+5(-2)=2?

12-10=2?

2=2 (TRUE!)

Therefore, the point (6,-2) is a solution

For Graphing, get both equations into y=mx+b. Plot the y-ntercept and then use your slope to find your second point. Draw your graph. Repeat for the other equation. See where the two graphs cross(intersect). That ordered pair is your solution!

## Answer this Question

## Related Questions

- math - Solve the system of equations by graphing. Then Classify the system? 4u+v...
- math - Solve the system of equations by graphing. Then classify the system? y= -...
- math - Solve the system by graphing. Then classify the system.? 6x-y=50 6x+7y=-...
- alegebra - Solve the system of equations by graphing. Then classift the system ...
- Math Help PLEASE - Solve the system of equations by graphing then classify the ...
- math - Solve the following system using elimination. If a single solution exists...
- math - Solve the following system using elimination. If a single solution exists...
- math - Determine whether the ordered pair is a solution of the inequality (5, 12...
- MATH - Solve this system using elimination. If a single solution exists, write ...
- math algebra - Solve the following system using elimination. If a single ...