Question: Having trouble graphing logarithmic & natural logs?

I have to graph the following:

y=e^x, y=e^x+3, y=2*e^x, y=e^(x+3)

I put in plot(exp(x),exp(x)+3,exp(x)*2,exp(x+3)) but it is giving me Error, in plot (unexpected options): [exp(x)+3,exp(x)*2,exp(x+3)]

I can't figure out what I'm doing wrong!

It also will not allow me to graph ln(x)

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