SOLUTION: solve by graphing and find the two coordinate pair as a solution of the two equations below: X-Y=-4 2y+X=5 P.S.- the coordinate pair as the solution must be the same for both e

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: solve by graphing and find the two coordinate pair as a solution of the two equations below: X-Y=-4 2y+X=5 P.S.- the coordinate pair as the solution must be the same for both e      Log On


   

Question 179519: solve by graphing and find the two coordinate pair as a solution of the two equations below:
X-Y=-4
2y+X=5
P.S.- the coordinate pair as the solution must be the same for both equations
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Switch both to slope-intercept form y=mx%2Bb and graph.
1.x-y=-4
1.y=x%2B4
Slope = 1, Y-intercept=(0,4)
Another point on the line: (-4,0)
.
.
.
2.2y%2Bx=5
2.2y=-x%2B5
2.y=+-%28x%2F2%29%2B5%2F2
Slope= -1/2, Y-intercept=(0,5/2)
Another point on the line (5,0)
.
.
.
Grpah the points and connect the lines.
Look for the intersection point of the two lines.

Looks like the intersection occurs at (-1,3).
Check the solution in both equations.
1.y=x%2B4
3=-1%2B4
-3=-3
.
.
.
2.y=+-%28x%2F2%29%2B5%2F2
3=+%281%2F2%29%2B5%2F2
3=3
The intersection point (1,3) leads to two true statements.
It is a good solution.