find the domain of f(t) = 4.5e^t and explain

[koreywarren]

The assignment simply says:

Find the domain of the following: f(t) = 4.5e^t and explain how you obtained your answer.

Find the domain of the following: g(x) = log(x+3) and show your work or explain how you obtained your answer.

Find the domain of the following: g(x) = 2^x and explain how you obtained your answer.

Find the domain of the following: g(t) = ln(t-1) and show your work or explain how you obtained your answer.

I am completely lost!!! I have no idea what I'm doing or what I'm supposed to do. I have never taken algebra in high school (which was 28 years ago) and am struggling with it now. Please help!

 

[stapel]

I am completely lost!

Does this mean that you don't know what variables are? Don't know what functions are? Don't know what domains and ranges are? Don't know what exponents are? Don't know what exponentials or logarithms are? Or something else?

We can try to find lesson links, so you can learn all the missing background material, but it would help if you could narrow down the search parameters. Thank you!

Eliz.

 

[koreywarren]

A) I believe Find the domain of f(t) = 4.5e^t is find the possible values of t. When function is being raised by a variable, the domain is all real numbers.
B) I believe Find the domain of g(x) = log(x+3) is find the possible values of x. -1, -2 and all real numbers. log is kind of the inverse function of an exponent. log of base 10, 10 to (x+3) You can't take log of a negative number so the domain is x>-3 Again, I had help by someone else and we ran out of time and didn't find the domain of C) g(x) = 2^x or D) g(t) = ln(t-1) It's possible that C) is: find the possible values of x. 2^x = 0, x = 0, the domain = 0 and D) is: find the possible values of t. t-1 = 0, t = 1, the domain = 1. I don't know if any of this is correct or not. I don't even know if I'm on the right road to finding the domain of any of the four.