SOLUTION: Are the following lines parallel, perpendicular, or neither? L1 through (–4, –7) and (1, 3) L2 through (2, 6) and (4, 10) HELP

Algebra ->  Trigonometry-basics -> SOLUTION: Are the following lines parallel, perpendicular, or neither? L1 through (–4, –7) and (1, 3) L2 through (2, 6) and (4, 10) HELP       Log On


   

Question 104397: Are the following lines parallel, perpendicular, or neither?
L1 through (–4, –7) and (1, 3)
L2 through (2, 6) and (4, 10)
HELP
Answer by elima(1433) About Me  (Show Source):
You can put this solution on YOUR website!
L1 through (–4, –7) and (1, 3)
L2 through (2, 6) and (4, 10)
You need to find the slope of each;
point-slope form;
L1=m=%283-%28-7%29%29%2F%281-%28-4%29%29
L1=m=10%2F%285%29
L1=m=2
L2=m=%2810-6%29%2F%284-2%29
L2=m=4%2F2
L2=m=2
Parallel lines have the same slope, perpendicular lines, slopes are negative reciprocals. These lines are Parallel.
:)