A Bear Market is where the value of shares listed on a stock exchange generally fall. Investors, anticipating further losses, are thus motivated to sell. An exaggerated bear market characterized by panic selling is called a stock market crash.
A bull market is where the market generally rises.
... parabola described by the quadratic equation touches the x-axis in a single point.)
If the discriminant is positive, then there are two different solutions x, both of ...