How do you make a shape on a graphing calculator?

Answer 1

In order to make most (recognisable) shapes on a graphing calculator, you will need to use at least 2 graphs mapped onto the same set of axes. For example, to make a heart, you havce 2 equations - Y1 and Y2 where:

Y1=(3/2)x^(2/3)+√(20-x²)-3
Y2=(3/2)x^(2/3)-√(20-x²)-3

This will give you what looks very much like a Valentine heart shape (changing the 3/2 at the start of each part to a 2 may give a taller heart, but it is thinner and IMO doesn't look as nice - choosing a coefficient between about 1.3 and 2 would give you the best Heart shape)

There are various other shapes that can be made too, but I'm not sure how to do them off the top of my head