Question 1014593
Please help me solve this problem, I have answered most of the questions, but I would really appreciate it if you would look over my answers and tell me if I am wrong and help me correct the mistakes. I mostly need help with e) and g). 
Use the function 2e^(-5x^2) to answer each question.
{{{graph(400,400,-10,10,-10,10,2*2.7181^(-5x^2))}}}
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a) State the domain:
I wrote the domain as x is an element of all real numbers:: OK
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b) Determine the intercepts, if any:
I found that there was no x-intercept, and a y-intercept at (0,2):: OK
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c) Discuss the symmetry of the graph:
I said the graph is symmetric with respect to the y-axis because the function is even.:: OK
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d) Find any asymptotes: 
I found no vertical asymptote, and a horizontal asymptote at y=0.:: OK
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e) Determine the intervals of increase and decrease:: Look at the graph,
or determine the 1st derivative, set to zero and solve.
I need help with this. 
f) What is the maxima and/or minima::OK
Maxima is 2 at x=0, no minima value.:OK 
g) Where is the curve concave upward and downward:
Find the 2nd derivative to determine the answer or
just look at the graph.
h) Locate the points of inflection:: Use 2nd derivative
I don't know if this is right or wrong but i calculated them as 
( -(1/sqrt(10)), 2/sqrt(e) ) and ( 1/sqrt(10), 2/sqrt(e) ) 
i) Graph the function:: Done
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Cheers,
Stan H.
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