Got another question for you guys - i hope someone is up and around here to help me out, i am totally stuck...
i am to find the implied domain of this function...
f(x)= [the square root of (x+6)] +3
i am understanding the domain and range theory and what not, but i just don't get it with this particular problem...
thanks for any help!
ryan
no believe me, i need to KNOW how to do it rather than just be told what the answer is. i have a test over all of this and more tomorrow, and i won't be able to have someone give me answers then, so my little brain has to do the thinking on its own.
i am already stuck on the next problem though - any chance I could get some assistance on how to start it at least?
g(x)= 3x^2 -x -1
for the following function, determine g(x+a)-g(x)
any ideas? i have NO clue how to even start this. there is absolutely no example of this in my book, nor any practice problems that look like this...
you should post new questions in new threads.
as for composite functions, which is what these are, here's a hint.
function notation works as follows, saying something like means, the function takes any value in its domain and plugs it in the order given. so whatever is in the brackets, takes the spot of .
some examples are in order:
using
so whatever shows up in the brackets, we replace with it, provided that thing is in the domain. ( is in the domain of all functions, in case you were wondering )
now, how about your problem?