The following diagram shows the temperatures during a day. 

Plot the points on a graph and then join the points with straight lines.

Approximately when did the temperature first reach $30°\mathrm{C}$ ? Was the temperature increasing or decreasing at this time?
 

The following diagram shows the temperatures during a day. 

Plot the points on a graph and then join the points with straight lines. For how long was the temperature above $40°\mathrm{C}$ ?

The following diagram shows the temperatures during a day. 

Plot the points on a graph and then join the points with straight lines. By how much did the temperature fall between $4$p.m. and $6$ p.m.?

Akshat was travelling in his car to a meeting. He set off from home at $6 a.m.$ and stopped on the way for a break. This distance-time graph shows his journey. Read the graph and answer the questions given below:

Akshat was travelling in his car to a meeting. He set off from home at $6 a.m.$ and stopped on the way for a break. This distance-time graph shows his journey. Read the graph and answer the question given below:

Akshat was travelling in his car to a meeting. He set off from home at $6 a.m.$ and stopped on the way for a break. This distance-time graph shows his journey. Read the graph and answer the question given below:

Akshat was travelling in his car to a meeting. He set off from home at $6 a.m.$ and stopped on the way for a break. This distance-time graph shows his journey. Read the graph and answer the question given below:

What is the distance of a point from the $y$-axis called?

The coordinates of any point on the $x$-axis are of the form $\left(0, y\right)$.