Answering questions on a line graph

Answering questions on a line graph
A line graph is used to show a trend over a number of days or hours. It is plotted as a series of points, joined with straight lines. Look at this line graph showi the temperature every day of last week at noon and see if you can answer the questions.
Key stage: Year 5, Year 6, 11+, KS2
Subject: 11+, Maths