SOLUTION: Please find the slope of a line perpendicular to the line 5x-7y=39. Thanks for your help.

Algebra ->  Linear-equations -> SOLUTION: Please find the slope of a line perpendicular to the line 5x-7y=39. Thanks for your help.      Log On


   

Question 918979: Please find the slope of a line perpendicular to the line 5x-7y=39. Thanks for your help.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
the standard slope-intercept form for an equation of a line is
y+=+highlight_green%28m%29x+%2B+highlight%28b%29 where m is the slope and b the y-intercept.
5x-7y=39 Solving for y
y = +highlight_green%285%2F7%29x - 39/7, m = (5/7)
the slope of a line perpendicular: m = -7/5 (negative reciprocal) %285%2F7%29%28-7%2F5%29+=+-1