Question: How to plot a line x=1 with the function xe^x on the same coordinate

My question seems simple but after using google and maple help I was still unsuccesfully in plotting a simple line with a function on the same coordinate.

 1. Let f(x) = xe^x^3 and denote by A the area bounded by f(x) = xe^x^3 , x-axis and the
line x = 1.
(a) Graph the function f over the interval [-1; 1].


I have no idea on how to plot  f(x) with the line x=1 on the same coordinate.

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