Originally Posted by

**kboykb** I'm having a problem here. I haven't taken a math class in 6 years but was pretty good in math in high school, so my SAT scores allowed me to skip Math 101 and go to Math 110 algebra.

The concepts of the class are pretty easy for me to grasp, but I'm beginning to find my weakness in a few things I should already know!

Could you help me with three questions? :)

Finding the inverses of functions.

f(x) = x ^ 3/5

so we have

y = x^3/5

x = y^3/5

Solving for Y to find the inverse is my problem. The answer is x^5/3 = y (the inverse) but I'm not seeing how to get this answer.

Also

f(x) = √4-x²

so again

y = √4-x²

x = √4-y²

solve for y.

I know squaring a square root takes it away, but it seems that my lack of the basic algebra skills is creeping up on me.

Final Problem

Evaluating the function

g(x) = x ^4/3

a. g(8)

b. g(t+1)

so for problem a I can do this..

x ^4/3 = 8 ^4/3 = (8^4)^1/3 = ³√4096 = 16

but for B.

x^4/3 = (t+1)^4/3 , then I'm stuck.

Thanks for the help :)