Question

Solve the problem by graphing
4x-2y=22
6x+9y=-3

Answer 1

Change these equations into the equations of linear functions.

`\left \{ {{4x-2y=22} \atop {6x+9y=-3}} \right. \\ \\ \left \{ {{-2y=-4x+22} \atop {9y=-6x-3}} \right. \\ \\ \left \{ {{y=2x-11} \atop {y=-(2)/(3)x-(1)/(3)}} \right.`

Draw function graphs and read coordinates of the intersection.

`\left \{ {{x=4} \atop {y=-3}} \right.`