Question

Write a pair of linear equations which has the unique solution $x=1,y=3$. How many such pairs can you write?

Answer 1

We have $x=1,y=3$

Hence, the equation in slope - point form,

$y-3=m(x-1)$

Or, $y=mx+(3-m)$

Hence, for different values of $m$, many lines are possible.