# another derivative question

#### coolbeans33

##### New member
what are the steps in finding the derivative of the function y=e-.5x

and why is the answer zero?

sorry I'm posting like 150 threads, I'm just really bad at math.

#### Jameson

Staff member
what are the steps in finding the derivative of the function y=e-.5x

and why is the answer zero?

sorry I'm posting like 150 threads, I'm just really bad at math.
$$\displaystyle \frac{dy}{dx} \ne 0$$. What have you tried? In general, what is $\dfrac {d}{dx} e^{x}$? What about $\dfrac{d}{dx} e^{f(x)}$?

Also, 2k posts!

#### Klaas van Aarsen

##### MHB Seeker
Staff member
what are the steps in finding the derivative of the function y=e-.5x

and why is the answer zero?

sorry I'm posting like 150 threads, I'm just really bad at math.
Uh?
Combined with the rule that the derivative of $e^x$ is $e^x$.