Question 844982
Plug in x and y to see if they solve the equation.
I
I'll do the first one and you continue and do the rest the same way.
{{{2x+4y=-6}}}
{{{2(-3)+4(0)=-6}}}
{{{-6+0=-6}}}
{{{-6=-6}}}
True, good solution.
{{{2x+4y=-6}}}
{{{2(-1)+4(-2)=-6}}}
{{{-2-8=-6}}}
{{{-10=-6}}}
False, not a solution.
Continue along this way until you've gone through all of the points.