What is the equation of a line perpendicular to the line - 8x + y = - 56 and contains the point (8,7)?
1 Answer
Mar 2, 2018
solve for y
if a line is perpendicular, its slope is the negative reciprocal.
the slope of this equation is 8, so the slope of a line perpendicular to it is
plug this into the point-slope eqation
this can be simplified to