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In PreCalculus, today, I received a fairly difficult project -- probably not as hard as you would think, but I do need help. We are asked to create one picture on our Graphing Calculators. I have done about 11 so far, but none are as I like them.

This is what I put into the Y Values:

Y1= Ö(81-X )

Y2= -Ö(81-X2)

Y3= Ö(4-(X+3)2)+3.7

Y4= Ö(4-(X-3)2)+3.7

Y5= -Ö(1-X2)

Y6= -Ö(16-X2)-2

Y7= -Ö(1-(X+3)2)+3

Y8= -Ö(1-(X-3)2)+3

Y9= -.7abs X+12

*Note: The Ö symbol stands for the square root symbol. The big 2s at the ends of the Xs stands for "squared". I couldn't find a way to make them smaller.

Here are my window values:

Xmin= -12

Xmax= 12

Xscl= 1

Ymin= -10

Ymax= 15

Yscl= 1

This should produce a smiley face. Can you show me some of your graphics and formulas you have used? I would greatly appreciate it!

Thanks so much; I really really need this! This is an urgent question.

Thanks,

Jamond

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# Graphing Calculator Project

Can you offer guidance or do you also need help?

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