Question 1163007
<font color=black size=3>
This is one way to draw out the graph. The vertices are {N,O,P,Q,R,S,T,U}. 
<img width="25%" src = "https://i.imgur.com/radgcv0.png">
When we write something like edge {N,P}, we mean that there is a line segment or some kind of curve connecting N to P.


==========================================================


a. What is the degree of vertex Q ?


The degree for vertex Q is 1 as there is only one connection from vertex Q to any other vertex. We have vertex Q connect to vertex O, as the edge {O,Q} shows.


-------------------


b. What is the degree of vertex U?


The degree is 3. We have three edges connect vertex U to the vertices N, S and P.


-------------------


c. How many components does the graph have?


There are 8 vertices and 9 edges, making a total of 8+9 = 17 components overall.
</font>