Mathematics for IGCSE & O level - Graphs In Practical Situations (Section 5 - No. 47)
Which of the following graphs shows a car that is accelerating?
A horizontal line on a distance-time graph.
A horizontal line on a speed-time graph.
A straight, non-horizontal line on a distance-time graph.
A straight line with a positive slope on a speed-time graph.
Paliwanag
A straight line with a positive slope indicates increasing velocity, which means acceleration.