Draw a Smiley Face on your Graphical Calculator

We all know that this is a BIG problem in our lives, how to draw such a face, but with 9 easy functions you will be able to plot yourself a face!

Function 1

y=(25 - x²)^(0.5) + 5

Function 2

y=(25 - x²)^(-0.5) + 5

Functon 3

y=0.1x² +1 (limited to x = -5 to x = 5)

Fuction 4/5

y = ±(0.25 - (x +2)²)^(0.5) + 7

Function 6/7

y=±(0.25 - (x - 2)²)^(0.5) + 7

Function 8/9

y=±(0.25 - x²)^(0.5) +4

And without the axis:

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