human
Determine if a given point lies on a line Jo and Paul are arguing about points on the line
\(4 x-5 y=20\)

Jo says \( (10,-4) \) lies on the line \( \mathbf{4 x}-\mathbf{5 y}=\mathbf{2 0} \)

Paul says \( (-4,10) \) lies on the line \( \mathbf{4} \boldsymbol{x}-\mathbf{5 y}=\mathbf{2 0} \)

Who is correct? Only
Jo
gpt
When subtracting a negative number from a positive number, uses a method which assumes one of the negative signs can be ignored 