1. ## relative extrema.

im not sure how to do this problem.

given the following function, state the x-coordinate of any relative extrema and identify as a maximum or minimum. justify your answer.

f(x)= e^x^2-4x

so x^2-4x is the exponent for e..

thank you.

2. Originally Posted by akilele
im not sure how to do this problem.

given the following function, state the x-coordinate of any relative extrema and identify as a maximum or minimum. justify your answer.

f(x)= e^x^2-4x

so x^2-4x is the exponent for e..

thank you.
Did you do something for it?
Start by taking the derivative ..

3. okay.. so the derivative is e(2x-4)... uhhh...and then i need to set the equatioin = to 0? and then what would i do after that?

4. Originally Posted by FinalFantasy9291
okay.. so the derivative is e(2x-4)... uhhh...and then i need to set the equatioin = to 0? and then what would i do after that?
If $f(x)=e^{g(x)}$ , then $f'(x)=g'(x) \, e^{g(x)}$ ..

5. ooh crap..

2x-4e^x^2-4x is the derivative. should be correct i hope.

6. Originally Posted by FinalFantasy9291
ooh crap..

2x-4e^x^2-4x is the derivative. should be correct i hope.
Correct.
Now, you should know what should you do ..

7. uhh i think i set it equal to 0 but im really not sure what else to do with this problem.. my calc teacher can't teach >.<