You can put this solution on YOUR website!
I'll assume you don't have a graphing calculator.
To plot by hand, you'll need to create a small table with enough points on it to allow you to 'see' the shape of the graph. Before we build that table, note that the function given
is exponential. Now setup a table of X|Y values. We'll put 7 X values in the table. If the shape of the plot is not evident from the values, you can always add more.
Now, solve the function for each X value.
= 0.0277 and so on
Now, plot those points (-3, 0.0046), (-2, 0.0277), (-1, 0.1666) , (0,1) etc
Then draw in a smooth curve that includes the points.