How to Graph Linear Equations Using X & Y Intercepts
- 1). Highlight two perpendicular lines in the middle of the graph paper. The vertical line is the y-axis and the horizontal one is the x-axis.
- 2). Mark the y-intercept on its axis. The numerical value of the y-intercept means that the point is located that many lines above or below the x-axis. If the intercept is positive, then it will be above the axis, and if it is negative, it is below. For this example, the y-intercept is 5, and it will be located five lines above the x-axis.
- 3). Mark the x-intercept on the x-axis. The numerical value of the x-intercept means that the point is located the indicated amount of lines to the left or right of the y-axis. If the intercept is positive, then it will right of the y-axis, and if it is negative, it will be to the left. For this example, the x-intercept is -8 and will be located eight lines to the left of the y-axis.
- 4). Mark a line through the two points with the straight edge of the ruler. Place arrows on either end to indicate that the line is unending in both directions.