### How to graph a direct variation

What's the Direct Variation or Direct Proportionality Formula? Ever heard of two things being directly proportional? Well, a good example is speed and distance. The bigger your speed, the farther you'll go over a given time period. So as one variable goes up, the other goes up too, and that's the idea of direct . Direct Variation. If you get the same value for k every time, then you have direct variation. If you are looking at a graph, direct variation has two defining characteristics. The graph will be a straight line, and that line will go through the origin, which is the point (0, 0). The ordered pair (2, 10), is a solution of a direct variation, how do you write the equation of direct variation, then graph your equation and show that the slope of the line is equal to the constant of variation?

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