# graph with some complex roots

• Mar 12th 2006, 05:36 PM
squidget_4
graph with some complex roots
Can someone explain to me the nature of a graph which has some complex roots?
• Mar 12th 2006, 06:13 PM
ThePerfectHacker
Quote:

Originally Posted by squidget_4
Can someone explain to me the nature of a graph which has some complex roots?

Not sure I understand the question, but let me give an example, the graph $f(x)=x^2+1$ has not real solutions, namely its solutions are $\pm i$. Thus, it cannot intersect the x-axis otherwise that would imply that it has real solutions
• Mar 16th 2006, 07:55 PM
squidget_4
Thanks, that makes some sense to me, I was uncertain of what was being asked as well.