Well, the very first thing you need to do is to <span> find the slope of the line
According to the fact that we already know that the slope is parallel </span>to the line, you can easily find out the slope, to be more exact :

Straight after, you have to use <span>point slope formula</span>
Answer:
1. )
2.) The angle between v and u is 147.52°.
Step-by-step explanation:
Given:

To Find:
1. 
2.
Solution:
is scalar product given as,



Here only i.i = j.j =1 and i.j = j.i = 0
∴ 
Now, Substituting the above values we get

As it is negative mean
is in Second Quadrant Because Cosine is negative in Second Quadrant.
1. )
2.) The angle between v and u is 147.52°.
Answer:
5/9
Step-by-step explanation:
1/3 is converted to 3/9 and then added to 1/9 so that is 4/9 and the 9/9 subtract 4/9 is 5/9
Answer:
$134.40
Step-by-step explanation:
The markup is 28% of 105, or .28(105) = $29.40
Thus the retail price is $105 + $29.40 = $134.40