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Input in standard form the equation of the given line. The line with m = -3/8 and passing through (5, -4)
Standard equation of a line passing through point (x1, y1) and slope m \[\frac{y-y1}{x-x1}=m\] Just plugin the values and you'll get the standard form
See http://en.wikipedia.org/wiki/Linear_equation#General_.28or_standard.29_form Ax + By = C is "standard form"