G8

Term Definition Example Unit perfect cube the result after multiplying an integer three times by itself; also called a cubed number

8, 27, 64... 2

perfect square the result after multiplying an integer by itself; also called a squared number

4, 9, 16, 25, ... 1

polynomial an expression with many terms; can have constants, variables and exponents that can be combined

0 = ─6a + 12b + 6 7

positive slope is increasing; as x increases, y increases

7

power indicates the number of times the base is multiplied by itself; also known as the exponent

5 ³; 3 is the exponent 5 · 5 · 5 = 125 “5 to the power of 3”

2

powers of ten ten multiplied by itself the number of times indicated by the exponent

102 means 10 × 10 = 100 3

pre-image the original figure prior to a transformation

9

properties of equality

mathematical rules to apply when solving linear equations

additive inverse multiplicative inverse

4

Grade 8 • Glossary

Grade 8 • Glossary