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OpenStudy (anonymous):
Write the equation of a line in slope-intercept form that has a slope of -2 and passes through the point (2, -8). A. y = -2x - 4 B. y = -2x - 8 C. y = -2x + 18 D. y = -2x – 12
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OpenStudy (amistre64):
slope intercept can be constrcuted from a given point and a slope: y=mx-mPx+Py
OpenStudy (anonymous):
A is right.
OpenStudy (amistre64):
or in this case we could just as easily sub in the point and see what fits
OpenStudy (amistre64):
-2(2) = -4 so the first one looks good for it
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