Q1.
 
This graph shows the temperature in °C from 2 am to 3 pm on a cold day.
 
How many degrees warmer was it at 3 pm than at 3 am?
  
1 mark
At 6 pm the temperature was 4 degrees lower than at 3 pm.
What was the temperature at 6 pm?
  
1 mark
Q2.
 
Alfie and his brother walked from home to their school.
Their school is 2 kilometres from home.
The graph shows information about Alfie’s journey.
 
(a)     How does the graph show that Alfie walked at a constant speed for all of his journey?
______________________________________________________________
1 mark
(b)     Alfie’s brother left home 10 minutes before Alfie.
He arrived at school 20 minutes after Alfie.
He walked at a constant speed for all of his journey.
At what time did Alfie overtake his brother? 
 
1 mark

Q3. Kevin measures his height in inches and then in centimetres.
These are his measurements.

The cross on the grid shows Kevin’s height in inches and centimetres.
Draw a line on the grid to make a conversion graph for inches and centimetres.

1 mark
Sally is 168cm tall.
Use the graph to estimate Sally’s height in inches.
 
1 mark
Q4.
 
These two graphs convert pounds (£) to Deutschmarks (Dm) and pounds (£) to dollars ($).

Use the graphs to complete the table.
 
number of
£	approximate
number of Dm	approximate
number of $	
0
200	0
 	0
 	
2 marks
Use the information in your table to draw a conversion graph for $ into Dm.

1 mark