SOLUTION: A line on a coordinate grid passes through the points (-1,-3) and (4,5). What is the slope of a line perpendicular to this line? Write the answer as a fraction in lowest terms

Algebra ->  Graphs -> SOLUTION: A line on a coordinate grid passes through the points (-1,-3) and (4,5). What is the slope of a line perpendicular to this line? Write the answer as a fraction in lowest terms      Log On


   

Question 876061: A line on a coordinate grid passes through the points (-1,-3) and (4,5). What is the slope of a line perpendicular to this line? Write the answer as a fraction in lowest terms
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
Q:
A line on a coordinate grid passes through the points (-1,-3) and (4,5). What is the slope of a line perpendicular to this line? Write the answer as a fraction in lowest terms
A:
The slope of the line joining (-1, -3) and (4, 5) is
%285+-+%28-3%29%29%2F%284+-+%28-1%29%29 = 8%2F5
The slope of the perpendicular line is equal to the negative reciprocal of 8%2F5
So the answer is highlight%28-5%2F8%29.