Find the slope of a line that is perpendicular to the line through the points

Question

Find the slope of a line that is perpendicular to the line through the points 

(4.99, 11.98) and (4.05, 29.99)

. Enter your answer as a fraction.

 

m 

≈

 

Answer 1

slope = (29.99-11.98)/(4.05-4.99) = 18.02/-0.94 = -9.01/0.47 = -901/47

slope = "rise over run" or the changer in y values divided by the corresponding change in x values

change in y coordinates is 29.99-11.98, change in x coordinates is 4.05-4.99

It doesn't matter which way you do it, you could do 11.98-29.99 over 4.99-4.05. You get the same slope either way.