In this video we will learn about the plotting of graphs for a pair of linear equations in two variables. Two straight lines are obtained when we plot a pair of linear equations on the graph paper ...

A linear equation in two variables has infinitely many solutions. • The graph of every linear equation in two variables is a straight line. • The graph of x = a is a straight line parallel to ...

One way to assess this fluctuating data is to add a linear trend line to the Excel 2013 graph. This visual ... a relationship between the two plotted variables, whereas a perfectly horizontal ...