Hey guys, I'm reading

__The Complete Idiot's Guide to Calculus__ and I think the book made a mistake.

Here is a picture of a graph that the author claims to have "origin-symmetry":

And here is his description of this graph. When the author mentions Figure 3.4, he is mentioning the graph he claims to have "origin-symmetry".

To me, it looks like it actually has y-symmetry!

If it had origin-symmetry, the graph to the right of the origin should be in quadrant 4, not quadrant 1! Because when x>0, y must be

**negative**. And when x<0, y must be

**positive**.

And when the author says "the origin-symmetric curve snakes

**down and to the right** as x gets more positive", you can plainly see that the curve actually snakes

**up and to the right** when x gets more positive

Is this book actually wrong on this subject?

Thanks for your time!