Answer:
-1/6
Step-by-step explanation:
To find the slope we use
m = (y2-y1)/(x2-x1)
= (-4-8)/( 1-3)
= -12/-2
=6
We want a line perpendicular, so we need the negative reciprocal
- (1/6)
-1/6
Answer:
Step-by-step explanation:
Using the cosine theorem:
The angle is 114.014 degrees if we substract 90 degrees it means that at point L the plane changed its angle by 24 degrees