Question: plotting with "Implicitplot" function

Hello:

I am using Maple11 for an Adv. Computer Applications Lab.  I am being directed to use the "implicitplot" function to plot a polynomial, and also plot a previous function that used the "spline" command to plot it on the same graph. 

Can someone please offer a suggestion?

Also, for the polynomial. how do I find all "x,y pairs? " I used the "solve" command to evaluate for 'x' and then 'y'. 

Is this correct?

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