Question

The initial and terminal points of RS are given

below. Find the direction angle of the vector.
R(-9,-1) and S(-6, -7)

Answer 1

Explanation:

I'll graph the line on desmos.

We get this vector, check first picture

First, we need to find x and y componets.

To do that, we find the displacement between the points

Since R is inital, the horinzontal displacement is. 3.

Since R is inital, the vertical displacement is -6. So

our x and y components is (3,-6).

We then using tangent to find direction angle

`\tan(x) = ( - 6)/(3)`

`\tan(x) = - 2`

`x = 116.57`

So our direction angle is 116.57 degrees.