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OpenStudy (spicytaco1):
A line passes through (2, −1) and (4, 5). Which answer is the equation of the line? −3x+y=−7 −3x+5y=13 −3x+5y=−13 −3x+y=17
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OpenStudy (wholock):
Start by performing the slope formula to find the slope.
OpenStudy (wholock):
(y2 - y1)/(x2 - x1)
OpenStudy (wholock):
(5 - (-1))/(4 - 2)
OpenStudy (wholock):
6/2, or 3 is the slope. Now plug in a point and find b, otherwise known as the y-intercept.
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