Exam-style question
Try this first
A car travels along a straight road. The distance-time graph for the journey is shown below. The graph is a curve.
Diagram Description
Distance-Time Graph
The graph shows distance (in km) on the vertical axis and time (in hours) on the horizontal axis. The curve starts at the origin (0,0), rises steeply at first, then the slope decreases gradually.
| Time (hours) | Distance (km) |
|---|---|
| 0 | 0 |
| 1 | 60 |
| 2 | 100 |
| 3 | 120 |
- a[3]
Calculate Estimate the speed of the car at t = 2 hours by finding the gradient of the tangent to the curve at that point.
Aim for approximately 3 distinct marking points.
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Maths method check
- Topic focus: Graphs in practical situations.
- Question style: structured_mathematics.
- Reasoning demand: reasoning.
- Check the operation, notation, units, and final answer form against the question before moving on.
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