SOLUTION: find the inverse of the one to one function Question f(x) = 3 sqr x - 2 multiple choice below A) f-1(x) = x3 + 2 B) f-1(x) = x3 + 4 C) f-1(x) =1x3 + 2 D) f-1(x) =

Algebra ->  Linear-equations -> SOLUTION: find the inverse of the one to one function Question f(x) = 3 sqr x - 2 multiple choice below A) f-1(x) = x3 + 2 B) f-1(x) = x3 + 4 C) f-1(x) =1x3 + 2 D) f-1(x) =       Log On


   

Question 1039929: find the inverse of the one to one function
Question f(x) = 3 sqr x - 2

multiple choice below
A) f-1(x) = x3 + 2 B) f-1(x) = x3 + 4 C) f-1(x) =1x3 + 2
D) f-1(x) = x + 2
Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!

Did you mean y=f%28x%29+=+3sqrt%28x%29+-+2 or this y=f%28x%29+=+3sqrt%28x+-+2%29?

If you mean the first, then type

f(x) = 3sqrt(x) - 2

If you mean the second, then type

f(x) = 3sqrt(x-2)

That's why parentheses were invented, so people
could explain what they mean by grouping words
or mathematical expressions together. Without
parentheses, algebra would be chaotic.  

Also to show exponents you must use this symbol ^ 
between the base and the exponent. x3 just means
3x, but x^3 means x3.

By the way, none of those choices could possibly
be the inverse function of a function involving
the square root function.  It would have to be
of degree 2, but all the choices you gave are
either of degree 3 or 1.  So I think you copied
the choices from the wrong problem.

Edwin