Topic 6 Algebra and Matrices (U2)

Question 1

What are the opposites of these symbols?
\+ / 
− /
× /
÷ / 

/ means equal to

Answer 1

+ / −
− / +
× / ÷
÷ / ×

Question 2

What are the opposites of these symbols?
×(2) / 
√× / 
×(3) / 
∛× / 

/ means equal to
(2) = squared

Answer 2

×(2) / √×
√× / ×(2)
×(3) / ∛×
∛× / ×(3)

Question 3

What is a network and what does it show?

Answer 3

A network shows connections between points. This is represented in the matrix with 1 showing the connections and 0 where there are no connections.

Question 4

What are adjacency matrices?

Answer 4

Adjacency matrices show the points that are next to each other (adjacent) in the network.

Question 5

What are communication networks?

Answer 5

Communication networks show communication links.