5) Equations, Inequalities And Sequences

Question 1

In an equation what does a letter or symbol represent?

Answer 1

An unknown number.

Question 2

How can you solve an equation?

Answer 2

Using the balance method, inverse operations to rearrange letters on one side of the =sign + numbers on the other.

Question 3

What is an integer?

Answer 3

A positive or negative whole number or 0.

Question 4

What can solutions to equations be?

Answer 4

Integers, fractions, decimals or negatives.

Question 5

What do you do in an equation with brackets?

Answer 5

Expand the brackets first.

Question 6

What do formulas show?

Answer 6

Relationship between 2 or more variables (letters). Can substitute values to find unknown value.

Question 7

What signs do inequalities use?

Answer 7

<>≥≤.

Question 8

How can you solve an inequality?

Answer 8

Same way as an equation.

Question 9

Can you show inequalities on a line and if so how?

Answer 9

Yes, empty circle shows number not included. Full circle shows number is included.

Question 10

What are the numbers in a sequence called?

Answer 10

Terms.

Question 11

What does the nth term tell you?

Answer 11

How to work out term at position n.