Indices

Question 1

Coefficient

Answer 1

Normally the number part of the algebraic term (e.g. in 4x, 4 is the coefficient)

Question 2

Expression

Answer 2

A mathematical form expressed symbolically.

Examples: 7+3; a^2+b^2

Question 3

Index Notation

Answer 3

The notation in which a product such as a × a × a × a is recorded as a^4

Question 4

Cube Number

Answer 4

A number that can be expressed as the product of three equal integers. Example: 27 = 3 × 3 × 3. Consequently, 27 is a cube number.

Question 5

Powers

Answer 5

The power of a number shows you how many times to use the number in a multiplication.

It is written as a small number to the right and above the base number.

Example: 8^2 = 8 × 8 =64

Question 6

Square number

Answer 6

A number that can be expressed as the product of two equal numbers. Example 36 = 6 x 6 and so 36 is a square number.

Question 7

Index Laws

Answer 7

Where index notation is used and powers are multiplied or divided, the rules for manipulating index numbers.

Examples:2^a × 2^b = 2^a+b and 2^a ÷ 2^b = 2^a-b

Question 8

Exponent

Answer 8

Sometimes used instead of index

Question 9

Reciprocal

Answer 9

The multiplicative inverse of any non-zero number. Example: 1/3 is the reciprocal of 3. Any number multiplied by its reciprocal gives 1. Example 1/3 x 3 = 1

Question 10

Evaluate

Answer 10

Find the value of a numerical or an algebraic expression.