According to economists, this episode of great recession was resulted from a sudden busting of house bubble in US, where the house bubble was caused by rapid growth of improper regulation on sub-prime mortgages (Merriam 2009; Wang 2009; Whitney 2007).
When working with equations that have two variables, the coordinate plane is an important tool. It's a way to draw pictures of equations that makes them easier to understand. To create a coordinate plane, start with a sheet of graph or grid paper. Next, draw a horizontal line.
A linear equation in two variables describes a relationship in which the value of one of the variables depends on the value of the other variable. In a linear equation in x and y, x is called x is the independent variable and y depends on it.We call y the dependent variable.If the variables have other names, yet do have a dependent relationship, the independent variable is plotted along the horizontal axis.olving Two-Step Linear Equations with Rational Numbers. When a linear equation has two variables, as it usually does, it has an infinite number of solutions. Each solution is a pair of numbers (x, y) that make the equation true.