$y\propto(x-2)^2$, and $y=27$ when $x=5$. Find $y$ in terms of $x$. Find $y$ when \

Question

$y\propto(x-2)^2$, and $y=27$ when $x=5$. Find $y$ in terms of $x$. Find $y$ when $x=8$. Find all real values of $x$ when $y=48$.

Accepted Answer

(a) $y=3(x-2)^2$; (b) $108$; (c) $x=6,-2$.

Direct and Inverse Proportion