Question: how to plot a quadratic?

Hi all. I am a new maple 18 user and Mapleprimes member.

1. I tried to plot y=x^2+2, but in the graph the value of y at x=0 is not 2(the bottom of the graph is near y=0). Same for the plot of just x^2+2(no y variable).

2. Why do I need to specify a y range for y=x^2+2? Why can't I just specify the x range only, since y is based on x?

Thanks in advance. :)




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