Question

or each ordered pair, determine whety=5x-315x-3y=9(2,7)(-1,– 8)(3,4)(0,-9)

Answer 1

$\begin{gathered} y=5x-3\text{ (1)} \\ 15x-3y=9\text{ (2)} \\ solving\text{ y from (2)} \\ 3y=15x-9 \\ y=\frac{15x}{3}-\frac{9}{3} \\ y=5x-3 \\ so\text{ (1) = (2)} \\ \text{hence there are many infi}netly\text{ solutions} \end{gathered}$