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

6 years ago
OpenStudy (amistre64):

slope intercept can be constrcuted from a given point and a slope: y=mx-mPx+Py

6 years ago
OpenStudy (anonymous):

A is right.

6 years ago
OpenStudy (amistre64):

or in this case we could just as easily sub in the point and see what fits

6 years ago
OpenStudy (amistre64):

-2(2) = -4 so the first one looks good for it

6 years ago