Question 151201
Is (2, -3) a solution of {{{x^2+2y = -2}}}?
To answer this question, you simply substitute the x- and y-coordinates from the given point (2, -3) into the equation and see if the left side is equal to the right side.
{{{x^2+2y = -2}}} Substitute x = 2 and y = -3
{{{(2)^2+2(-3) = -2}}} Evaluate.
{{{4-6 = -2}}}
{{{-2 = -2}}}
The answer is yes and the the reason is that the x- and y-coordinate values of the given point satisfy (constitute a solution of) the equation.