Question

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

Answer 1

f(x) = sqrt{10 - 3x}
y = sqrt{10 - 3x}
y^2 = 10 - 3x
3x = 10 - y^2
x = (10 - y^2)/3

f^-1(x) = (10 - x^2)/3