What is the slope of line PQ? y
10
8
What is the slope of line MN?
M
6
4
How are the two lines related?
Р
Q
x
2
-2
-2
-10 8 6
2
4
6
e
10
4
6
8
N
-10

Step-by-step explanation:

Slope of a line passing through two points and is given by the formula,

Slope =

Slope of the line PQ passing through the two points P(-8, 2) and Q(4, 2) will be,

Slope '' = = 0

Therefore, slope of the line PQ parallel to the x-axis = 0

Slope of the line MN passing through the points M(8, 6) and N(8, -8) is,

Slope '' = = ∞

Therefore, slope of the line MN parallel to y-axis is undefined.

Since, angle between the x-axis and y-axis is 90°,angle at the intersection  point between the lines parallel to x and y axis will be 90°.

These lines are perpendicular to each other.

what are you trying find out?

step-by-step explanation: