Optional extension The quantity $y$ is inversely proportional to $x^2$. If $y=18$ for one valu

Question

Optional extension The quantity $y$ is inversely proportional to $x^2$. If $y=18$ for one value of $x$, find $y$ when that $x$-value is increased by $200\%$.

Accepted Answer

$y=2$.

Tripling an inverse-square input

Tripling an inverse-square input

Solution:

Solution locked