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Most linear equations are functions (that is, for every value of x, there is only one corresponding value of y). When you assign a value to the independent variable, x, you can compute the value of the dependent variable, y. You can then plot the points named by each (x,y) pair on a coordinate grid.
Graphing a Linear Equation. In order to graph a linear equation you can put in numbers for x and y into the equation and plot the points on a graph. One way to do this is to use the intercept points. The intercept points are when x = 0 or y = 0.Here are some steps to follow: You can check your answers by trying other numbers in the equation.t first it may seem strange that an equation represents a line on a graph. To make a line you need two points. Then you can draw a line through those two points. The x and y variables in the linear equation represent the x and y coordinates on a graph.