Question 623621
Graph:

1). f(x)=e^x-3

2). y=2^(x-1)+4

3). f(x)=4^(x+2)-3 
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Pick values for x and find y, or f(x).
Plot the points, draw a curve thru them.
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You can use Excel to make a table of points. Or,
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dl the FREE graph software at
http://www.padowan.dk
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You can make a table of points, or have it do the graphs for you.
Use Insert, then enter the function with no equal sign.