Graphs of proportional relationships

Maths

Which graph does not show to direct proportion?

Which table does not shows direct proportion?

x and y are directly proportional as shown in the graph. What is the value of y when x = 10?

The number of pens are directly proportional to the cost. What is the missing number?

The number of rulers are directly proportional to the cost. What is the missing number A?

The number of rulers are directly proportional to the cost. What is the missing number B?

x and y are directly proportional. What is the missing number in the box?

A shop sells ribbon for £3 per metre.  The length of the ribbon is directly proportional to its cost. What is the cost of 5.5 metres?

Which description cannot go that can go in the arrow?