Question

Are the lines L1 and L2 passing through the given pairs of points parallel, perpendicular, or neither parallel nor perpendicular?

L1: (1,2) , (3,1) and L2: (0,-1) , (2,0)

Answer 1

Have you considered calculating the slope of each line?

Answer 2

idk how to do that

Answer 3

we need to find the slopes using slope formula :
slope(m) = (y2 - y1) / (x2 - x1)
(1,2) x1 = 1 and y1 = 2
(3,1) x2 = 3 and y2 = 1
now we sub
slope(m) = (1 - 2) / (3 - 1)
m = -1/2

now you find the slope of the other two sets of points

Answer 4

let me start you off...
slope(m) = (y2 - y1) / (x2 - x1)
(0,-1) x1 = 0 and y1 = -1
(2,0) x2 = 2 and y2 = 0
now we sub
slope(m) = (0 - (-1) / (2 - 0)
can you finish and find the slope ?

Answer 5

hello ??

Answer 6

sorry i took long but i got it now :)