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Determine the equation of a line parallel to MN, and passing trough the origin. How do I do this? Points for MN (-1,1) and (3,9). The gradient is 2 and the equation of the line MN is y=2x + 3

Sagot :

since it goes from the origin, the the y intercept or C is 0. Therefore the equation of the line is just: y=2x