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find the y-intercept.

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If one point on a line is (7,-9) and the line’s slope is -5, find the y-intercept.

asked Dec 22, 2017 in GEOMETRY by anonymous

1 Answer

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Slope intercept form y = mx + c

Where "c" is the y - intercept

Substitute (x, y) = (7, -9) and slope m = -5 in above equation

- 9   =   (-5)(7) + c

-9   =   -35 + c

- 9 + 35   =   c

26   =   c

Hence, The y - intercept is 26.

answered Dec 22, 2017 by homeworkhelp Mentor
edited Dec 23, 2017 by bradely

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