Define a Relation $R$ From $\{ a , b , c \}$

question 7

Essay

Define a relation $R$ from $\{ a , b , c \}$ to $\{ u , v \}$ as follows: $R = \{ ( a , v ) , ( b , u ) , ( b , v ) , ( c , u ) \}$ .
(a) Draw an arrow diagram for $R$ .
(b) Is $R$ a function? Why or why not?

---

Definitions:

Acid-test Ratio

A financial metric that measures a company's ability to cover its short-term liabilities with its most liquid assets, excluding inventory.

Debt-to-equity Ratio

The debt-to-equity ratio is a financial leverage ratio that compares a company's total liabilities to its shareholder equity, indicating how much the company is financing its operations through debt versus wholly owned funds.

Receivable Turnover

Receivable turnover is a financial ratio that measures how efficiently a company collects its accounts receivable, calculated by dividing net credit sales by average accounts receivable.

Inventory Turnover

A ratio showing how many times a company's inventory is sold and replaced over a period, indicating efficiency in managing stock levels.