1)For what values of x is the graph of y=e^-x^2 concave down?
I am not sure how to go about doing this problem, so please, any advice or steps on how to complete the problem will be much appreciated.
Find the second derivative and set it equal to zero. Solve for all values of x and test in between those values to see if you get a negative or positive number. Negative results mean it is concave down within that sub-domain.