Posted by Ariel on Wednesday, June 9, 2010 at 7:36pm.
Out of 30 questions these few I struggled with. I put what I feel was right but to be sure I would like some one to check my answers and if there wrong redirect me on how to get the correct answer.( after the = is the answer i think it is.
1.) Given points A(4, 5), B(2, 3), C(0, 4) and D(5, 0), decide if AB and CD are parallel, perpendicular or neither.
=Neither
2.)Given the equations y = 1x + 7 and y = 3x  2, decide whether the lines are parallel, perpendicular or neither.
=neither
3.) Given the equations y = 4/3x  3 and y = 3/4x + 2, decide whether the lines are parallel, perpendicular, or neither.
=Perpendicular
4.) Which set of points are collinear?{options being A(1,5); B(2,6); C(4,7), A(0,0); B(1/2,3); C(1,5), A(4,2); B(0,4); C(2,5)
= A(4,2); B(0,4); C(2,5)
5.) Choose whether the lines given below are parallel, perpendicular or neither.4x  6y = 9; 3y  2x = 7j
= neither
6.) Choose whether the lines given below are parallel, perpendicular or neither.
4x  6y = 9; 4y + 6x = 12
=perpendicular
7.) Choose whether the lines given below are parallel, perpendicular or neither.4x  6y = 9; 3x  2y = 11
=neither
8.) Triangle Î”ABC has vertices A(2,5), B(8,1) and C(2,1) and is a right triangle. If the slope of AB is 2/3 and the slope of AC is 3/2, are the lines parallel, perpendicular or neither?
=perpendicular

Plz Check My Geometry  Reiny, Wednesday, June 9, 2010 at 7:45pm
I caught #5
first equation : 4x  6y = 9
multiply 2nd by 2 > 4x  6y = 14j
what do you think now? 
Plz Check My Geometry  Ariel, Wednesday, June 9, 2010 at 8:03pm
perpendicular

Plz Check My Geometry  Reiny, Wednesday, June 9, 2010 at 8:12pm
no, aren't their slopes equal ??
4x  6y = ?????
the slope is 2/3, the constant on the right side does not matter. 
Plz Check My Geometry  Ariel, Wednesday, June 9, 2010 at 10:31pm
oh ok

Plz Check My Geometry  shaq, Sunday, September 4, 2011 at 5:39pm
lol

Plz Check My Geometry  Bienka liberal, Thursday, July 12, 2012 at 10:39am
Choose whether the lines given below are parallel, perpendicular or neither.

Plz Check My Geometry  Tiara, Thursday, May 8, 2014 at 4:46pm
Determine whether the lines are perpendicular, parallel or neither.
x+2y= 2
2x4y= 3