Exponential functions?? Help!
F(2/3)=64 x
the answer is 16?

g(3/4)= 3(16) x

I'm just really confused how they are solving for this? Thanks!

Question

Exponential functions?? Help!
F(2/3)=64 x
the answer is 16? 

g(3/4)= 3(16) x

I'm just really confused how they are solving for this? Thanks!

anonymous · Answer

f(2/3)=64(2/3)

and 

g(3/4)=3(16)*(3/4)

You need to plug the values in for x, and then multiply them out.  Does that make sense, see what you get and we will make sure you are right!

anonymous · Answer

ok, i understand that part.  but when it comes to solving for the root it gets confusing for number one I got 64 2/3 plugged in for x and number two 3(16)3/4

anonymous · Answer

You mean 64*(2/3), correct?

anonymous · Answer

yes

anonymous · Answer

So to simplify that, you should get 128/3 which is simplest form.  For the second one, 3*16=48.  Take that 48 and multiply it by (3/4), so 48*(3/4)=144/4, which simplifies to 36.

anonymous · Answer

Ok great thanks alot!

anonymous · Answer

No worries, do you understand everything?

anonymous · Answer

Yes thanks!