Imaginary numbers

Hey guys its Raveen and Pryanka,

We found a video that you guys might want to see about imaginary numbers from the Khan Academy above

Well, we were trying to find out what imaginary numbers are so we found some definitions online.

 The defintion we thought was right is from the website: http://www.wisegeek.com/what-is-an-imaginary-number.htm

It said... "An imaginary number is a mathematical term for a number whose square is a negative real number. Imaginary numbers are represented with the letter i, which stands for the square root of -1. This definition can be represented by the equation: i² = -1. Any imaginary number can be represented by using i. For example, the square root of -4 is 2i."

For a more detailed explanation just click the website link above

                                                                                  hope this helps!