How do you determine whether a linear system has one solution, many solutions, or no solution when given 7x+5y= -12 and 3x-4y=1?
1 Answer
In this instance, one solution.
Explanation:
These two straight plots have different gradients (coefficient of
If they had the same gradient they would be parallel to each other. In this context the only way that they would "have contact" with each other is if one was superimposed with the other. In which case you would be repeating the equation.