Question

A system of equation has no solutions. If y=8x+7 is one of the equation, which could be the other equation

Answer 1

This function, y=8x+7 is linear with a slope (m) =8.

Any other function with slope m = 8 could be the other equation

Example:

y=8x+10
y=8x-5/3
y=8x+10,000
etc.
In short there are an infinity of function