Mathematics for IGCSE & O level - Graphs In Practical Situations (Section 6 - No. 49)
If a car is travelling at a constant speed, what will its distance-time graph look like?
A horizontal line
A straight line with a positive slope
A straight line with a negative slope
A curved line
Paliwanag
Constant speed is represented by a straight line with a constant gradient on a distance-time graph.