Question

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Explanation:

Step1: Analyze speed from slope steepness

Speed = $\frac{\text{Change in distance}}{\text{Change in time}}$, steeper slope = faster speed. Flat slope = stopped.

Step2: Match Q1 (fastest speed)

The steepest slope is 2.4-2.6 hours (distance drops 5 km in 0.2 hours). Match to a.

Step3: Match Q2 (slowest speed)

The shallowest non-flat slope is 1.6-2.2 hours (distance rises 2 km in 0.6 hours), which is option d.

Step4: Match Q3 (longest stop)

Flat line 0.8-1.4 hours (60 mins) is longest stop. Match to e.

Step5: Match Q4 (shortest stop)

Flat line 2.2-2.4 hours (20 mins) is shortest stop. Match to c.

Step6: Match Q5 (fastest away)

Steepest outward slope is 0-0.8 hours (8 km in 0.8 hours). Match to b.

Step7: Match Q6 (slowest return)

Shallowest return slope is 2.6-3 hours (5 km in 0.4 hours). Match to f.

Answer:

1. a. 2.4 - 2.6 hours
2. d. 1.4 - 2.2 hours
3. e. 0.8 - 1.4 hours
4. c. 2.2 - 2.4 hours
5. b. 0 - 0.8 hours
6. f. 2.6 - 3 hours