If I have $M(x)$ and $B(y)$, where $M$ and $B$ are non-invertible functions (what I am attaching is just an example), how can I plot $x$ vs $y$ for values where the images are equal, i.e., $M(x) = B(y)$? In the example, I believe the values of $x$ and $y$ should lie within $[0, 1.6]$ approximately for $M$ and $B$.
