Question

find formula for the inverse of function
f(x)=sqrt{10-3x}

Answer 1

solve
\[x=\sqrt{10-3y}\] for \(y\) via
\[x^2=10-3y\]
\[x^2-10=-3y\]
\[y=\frac{x^2-10}{-3}=\frac{10-x^2}{3}\]