Question

line 1 passes through the points (1,2) and (5,-9). Line 2 passes through (1,-5) adn (14,-4) . Are the lines parrallel, perpendicular, or neither? How do you know?

Answer 1

Slope of first line = -11/4. Slope of second line = 1/13. Since the slopes are not the same nor are they negative reciprocals, the answer is neither.

Answer 2

line 1 ;

-9-2/5-1
-11/4

line 2 :

-4+5/ 14-1
1/13

The slopes are different so neither :)

Answer 3

thank you