# SOLUTION: Graph the linear system and estimate the solution. Then check the solution algebraically. x+2y=9 -x+6y=-1 thanks in advance

Algebra ->  Algebra  -> College  -> Linear Algebra -> SOLUTION: Graph the linear system and estimate the solution. Then check the solution algebraically. x+2y=9 -x+6y=-1 thanks in advance      Log On

 Algebra: Linear Algebra (NOT Linear Equations) Solvers Lessons Answers archive Quiz In Depth

 Question 164302: Graph the linear system and estimate the solution. Then check the solution algebraically. x+2y=9 -x+6y=-1 thanks in advanceAnswer by Fombitz(13828)   (Show Source): You can put this solution on YOUR website!Transform both to slope-intercept form and graph. . . . Slope = -1/2, Y-intercept=9/2 . . . Slope=1/6, Y-intercept=-1/6 . . . Then graph the two lines. . . . Looks like (7,1) is the solution. Check using the equations. . . . The solution was verified using both equations. . . . Now the algebraic solution. 1. 2. Add eq. 1 and eq. 2 to get rid of x. Then from eq. 1, 1.