Direct Proportion Review

If 10 bricks weigh 15kg

How much would 3 bricks weigh?

If 20 sweets cost £2.40

How much would 7 sweets cost?

If 3 bottles of juice cost £5.40

How much would 10 bottles of juice cost?

2.5 kg of apples cost £3.60

Work out the cost of 3.5 kg of apples

0.4 kg of cheese costs £3.60

Work out the cost of 1 kg of cheese

Does the table represent a proportional relationship?

• Yes.

• No.

What does the Direct Variation Equation look like?

• Y= kx

• y = mx + b

• y = b

• y = x

Four apples cost 96p. Each apple costs the same price.

• 24 p

• 72 p

• £0.72

• 0.24

The cost of 10 text messages is 60 pence. What is the cost of 5 text messages?

• 5p

• 6p

• 30p

• 10p

The cost of 10 text messages is 60 pence. What is the cost of 20 text messages?

• £0.40

• £1.2

• £12

• £1.20