Networks Terminology
Linear Algebra
Loans & Annuities
Energy & Sustainability
Brain Rot
100

These are the points or nodes in a network diagram.

What are vertices?

100

This is the point where two straight-line graphs cross.

What is the point of intersection?

100

This type of loan decreases over time as regular repayments are made.

What is a reducing balance loan?

100

This unit is used to measure power and is equal to one joule per second.

What is a watt?

100

When a network vertex has no edges connected to it, it is giving major “left on read” energy.

What is an isolated vertex?

200

These are the lines that connect vertices in a network.

What are edges?

200

These are two or more equations that are solved at the same time.

What are simultaneous equations?

200

This is the amount of money paid back regularly on a loan.

What is a repayment?

200

This unit is commonly used on electricity bills to measure energy use.

What is a kilowatt-hour?

200

When income and cost graphs finally meet, the business has stopped taking Ls but is not yet making Ws.

What is the break-even point?

300

This is a sequence of connected vertices and edges in which no vertex or edge is repeated.

What is a path?

300

In a business graph, this point occurs when income and cost are equal.

What is the break-even point?

300

This investment involves regular, equal contributions with interest compounding over time.

What is an annuity?

300

A 2 kW heater running for 3 hours uses this much energy.

What is 6 kWh?

300

This is when money keeps growing because interest gets added to interest. Financial maths really said “let him cook.”

What is compound interest?

400

This number tells how many edges are connected to a vertex.

What is the degree of a vertex?

400

If revenue is greater than cost, the business is said to be experiencing this.

What is profit?

400

This happens to the total interest paid on a loan when extra repayments are made.

What is it decreases?

400

A 1.5 kW appliance runs for 4 hours at $0.30 per kWh. This is the cost.

What is $1.80?

400

Your heater is running for hours, your electricity bill is cooked, and the energy company measures the damage in this unit.

What is a kilowatt-hour?

500

This network connects all vertices with the minimum total edge weighting and contains no cycles.

What is a minimum spanning tree?

500

A muffin stall has income I=3xI = 3xI=3x and cost C=120+xC = 120 + xC=120+x. This is the number of muffins needed to break even.

What is 60 muffins?

500

This is a multiplier used to calculate the present value of a series of future cash flows. It helps determine what a stream of payments is worth today based on a specific interest rate (r) and number of periods (n).

What is an Interest Factor?

500

A 2400 W heater runs for 5 hours per day for 10 days at $0.25/kWh. This is the total cost. 

What is $30?

500

This network connects every vertex with the lowest total weighting and no unnecessary loops. Basically, the most efficient route with zero side quests.

What is a minimum spanning tree?