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.
Calculator Use. Enter 2 sets of coordinates in the x y-plane of the 2 dimensional Cartesian coordinate system, (X 1, Y 1) and (X 2, Y 2), to get the distance formula calculation for the 2 points, calculate distance between the 2 points and graph the line connecting the points.