We can parameterize the ray from $C$ through $P$ as a function of $t$:
$\qquad R(t) = (1-t)C + tP$
With $C$ at $(0, 0)$ and $P$ at $(4, 3)$, $R(t)$ intersects a line defined by the equation:
$y = -\dfrac{x}2 + 7.5$
If the intersection point is $I$ and $I = R(t^*)$, what is the value of $t^*$? [[☃ numeric-input 1]]
[[☃ interaction 1]]