How many linear equations in x and y? can be satisfied by x = 1 and y =2 ?

The collection of all feasible values for the variables that satisfy the specified linear equation is known as the solution set of a system of linear equations.

Plot the point x = 1 and y = 2

Draw lines through the point.

From the graph, it’s clear that infinite straight lines can pass through the point (1, 2)

So, infinite linear equations are possible satisfying x = 1 and y = 2.