Unit 5

3. region the set of all possible solutions that satisfy all the constraints in a problem.
4. interest an interest charge that borrowers pay lenders for a loan.
10. not keeping or showing an even balance
11. the state of owing money.
13. money paid regularly at a particular rate for the use of money lent, or for delaying the repayment of a debt.
14. a place where two or more lines meet or cross.
15. a condition in which different elements are equal or in the correct proportions.

1. an amount or quantity that exceeds what is needed or required.
2. an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions.
5. a fundamental concept or rule that explains how the economy works.
6. a pair of numbers which are used to determine the position of a point or a shape in a 2-dimensional plane.
7. deduction A tax deduction is an expense that can be subtracted from your gross income, reducing your taxable income and, as a result, the amount of tax you owe.
8. a point where two or more curves, lines, or line segments meet or intersect.
9. an estimate of income and expenditure for a set period of time.
12. inequality a linear inequality is an inequality which involves a linear function.