Example

Graphing y=5xy = 5x Using Intercepts

To graph the equation y=5xy = 5x using the intercept method, begin by calculating the intercepts. Setting y=0y = 0 to find the x-intercept yields 0=5x0 = 5x, so x=0x = 0, resulting in the point (0,0)(0, 0). Similarly, setting x=0x = 0 to find the y-intercept yields y=5(0)y = 5(0), so y=0y = 0, which is also the point (0,0)(0, 0). Since this line passes directly through the origin, both intercepts represent the identical point. Because a single point is insufficient to graph a line, select two additional values for xx to determine more points. For example, substituting x=1x = 1 provides y=5(1)=5y = 5(1) = 5, resulting in (1,5)(1, 5). Substituting x=1x = -1 provides y=5(1)=5y = 5(-1) = -5, resulting in (1,5)(-1, -5). Finally, plot the three points (0,0)(0, 0), (1,5)(1, 5), and (1,5)(-1, -5), verify that they line up perfectly, and draw the line connecting them.

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Updated 2026-05-03

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