Point $\pink{A}$ is at $(2, 6)$ and point $\blue{B}$ is at $(-5, -7.5)$.
If point $\purple{M} = (1 - t)\pink{A} + t\blue{B} = (-5, -7.5)$, what is the value of $t$? [[☃ numeric-input 1]]
You can use the interactive diagram below to help you :
[[☃ iframe 1]]