Graphs

What does a FLAT line on a graph mean?

1. Athe quantity is not changing
2. Bthe quantity is falling
3. Cthe graph has ended

What should you look at FIRST on a new graph?

1. Athe axis labels and units
2. Bthe highest point
3. Cthe colour of the line

At 10 minutes the value was 1 and at 20 minutes it was 3. Estimate the value at 15 minutes.

A steeper line means a faster rate of change.

A graph rises steeply, then levels off, then falls. Put the descriptions in order.

A car travels at a steady 6 km per hour. How far does it go in 4 hours?

A car travels at a steady 8 km per hour. How far does it go in 4 hours?

At 10 minutes the value was 2 and at 20 minutes it was 8. Estimate the value at 15 minutes.

A car travels at a steady 5 km per hour. How far does it go in 8 hours?

A car travels at a steady 6 km per hour. How far does it go in 7 hours?

At 10 minutes the value was 6 and at 20 minutes it was 8. Estimate the value at 15 minutes.

At 10 minutes the value was 4 and at 20 minutes it was 12. Estimate the value at 15 minutes.

At 10 minutes the value was 3 and at 20 minutes it was 10. Estimate the value at 15 minutes.

A car travels at a steady 9 km per hour. How far does it go in 8 hours?

A car travels at a steady 2 km per hour. How far does it go in 8 hours?

At 10 minutes the value was 6 and at 20 minutes it was 14. Estimate the value at 15 minutes.

At 10 minutes the value was 1 and at 20 minutes it was 8. Estimate the value at 15 minutes.

A car travels at a steady 4 km per hour. How far does it go in 2 hours?

At 10 minutes the value was 2 and at 20 minutes it was 6. Estimate the value at 15 minutes.

A car travels at a steady 2 km per hour. How far does it go in 6 hours?