Part 2.
By replacing the numbers 8 and -5 into the place of x and ty, respectively, we have
[tex]-5=\frac{1}{4}8[/tex]
which gives
[tex]-5=2[/tex]
which is an absurd result. Then, the point (8,-5) does not belong to the given equation.
Part 3.
Similarly to the previous case, by replacing the numbers 0 and 3 into the place of x and y, respectively, we get
[tex]0+5(3)=-15[/tex]
which gives 15 = -15, which is an absurd result. So, this point does not belong to the equation.
Part 4.
Again, by replacing the number 2 into the place of x, we have
[tex]2=2[/tex]
since the equation is correct, then the point (2,3) belongs to the equation.
