Higher November 2021 Paper 2 Q3
3 Sam drives his car on a journey.
Here is the travel graph for the first 15 minutes of his journey.
(a) Work out Sam’s speed, in km/h, for the first 15 minutes of his journey. (2)
At 10 15 Sam stops for 10 minutes and then drives for 20 minutes at a speed of 75 km/h.
(b) On the grid, complete the travel graph for Sam’s journey. (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| 80 | M1 | for a complete method eg \(\dfrac{20}{15} \times 60\) or \(20 \times 4\) or \(20 \div \dfrac{1}{4}\) |
| A1 | cao |
| Answer | Mark | Mark scheme |
|---|---|---|
| Travel graph | M1 | for method to find distance travelled in last 20 minutes, eg \(75 \times \dfrac{20}{60}\ (= 25)\) |
| C2 | for a fully correct travel graph | |
| (C1 | for horizontal straight line from (10 15, 20) to (10 25, 20) or for a line of the correct length and gradient to indicate a speed of 75 km/h eg a straight line from (10 25, 20) to (10 45, 45)) |
Additional guidance
Can be implied by a distance of 25 km drawn on the graph