Showing posts with label Perpendicular Slope. Show all posts
Showing posts with label Perpendicular Slope. Show all posts

Friday, May 10, 2013

For the pair of equations, determine whether their graphs are parallel, perpendicular, or neither.










Solution:

The slopes of two parallel lines are equal so these lines are not parallel. the product of perpendicular lines is -1. The product of these slopes is: 
(2)(-1/2)=-1 
Therefore these lines are perpendicular

Thursday, May 9, 2013

perpendicular to 3x+4y=12 passes through (3,2)




Your Answer:
3x%2B4y=12
Ax%2BBy=C
has the slope
m=-B%2FA=-4%2F3
which is perpendicular to

-1%2Fm=3%2F4


our given point is (3,2), so using the point-slope form of the equation of a line we get:


y-2=%283%2F4%29%2A%28x-3%29


:)