How do you determine whether (2,2) is a solution to #y < -2x + 1#?
We plug in the x and y values to find that
When looking at a set of coordinates (x,y), to find out if those coordinates are the solution to a given equation is simple. All we have to do is plug them in.
So in the set of coordinates (2,2), x=2 and y=2. Now we take those numbers and plug them in for x and y in our equation.
Simplifying, we find