Investors who read stock charts can use moving averages, price action and volume signals to sell stocks. Add to that toolbox a simple straight line. If a stock breaks its long-term price trend, that's ...

Straight line method spreads an asset's cost evenly over its life, aiding in clear financial planning. Using this method simplifies financial statements, making a company's health easier to assess.

Most straight-line approximations for data points are found using the method of least squares. This method works for many applications, but it cannot guarantee that the greatest vertical distance ...