http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines
7.x− 3 y=11;( 0 , 13 )Determine if each pair of lines is perpendicular or not.
marvins-underground-k-12
(Marvins-Underground-K-12)
#1
http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines
7.x− 3 y=11;( 0 , 13 )Determine if each pair of lines is perpendicular or not.