# Math Help - parameters Function

1. ## parameters Function

In the picture you can see the Function. is known that a,b are Positive.

who from the Following Finding are correct ?(can be more than one )

1)Y=a/b is an Horizontal Asymptotic for the f Graph

2)there is no any vertical Asymptotic for this Function

3)f(x) are Continuous for any x

4)f(x) are Rising for any x

thanks.

2. Since the denominator is always positive and $e^{-x}$ is continous everywhere, f(x) is continuous for any x. So, 3) is correct.

How about trying the others yourself?

3. well tell me if i correct if a,b is positive and i know e^x are always Rising up so i think 4 is correct.

can you help me to find the Derivative ? than i will can find if 1 and 2 are correct.

I just know that for the Function e^x there is no any vertical Asymptotic but here is not the same case Exactly.

thank you.