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What is the equation of a line that passes through (78) and has a slope of -3?
JosephButlergp1401
81
Lorenza Kassulke
Wiki User
∙ 8y agoUse the "point-slope" equation for the line, and replace. The point-slope equation is:y - y1 = m(x - x1)
Where:
* x1 and y1 are the coordinates of the point, and
* m is the slope
Wiki User
∙ 8y agothe slope = (y - y1)/(x - x1). Accordingly, -3 = (y - 8)/(x - 7). The result is -3x + 21 = y - 8 or y = 29 - 3x
Wiki User
∙ 8y agoIf you mean: (7, 8) then it is y = -3x+29
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