Question

A system of equations has 1 solution. If 4x-y=5 is one of the equations, which could be the other equation?

Answer 1

4x-y = 5

-y = -4x + 5

y = 4x - 5

The solution of linear equation is found by drawing them on a graph.

The solution is obtained by reading the co-ordinates of the point of intersection of the lines.

If the system of equations have one solution, they must be of the form:

y = ax - 5  Where a ≠ 4


Examples of such equations are:


y = 2x - 5

y = 3x - 5

y = 8x - 5

etc