Mathematics for IGCSE & O level - Graphs In Practical Situations (Section 3 - No. 16)
Which of the following is true about a speed-time graph that curves upwards?
The object is accelerating at a constant rate.
The object's speed is decreasing.
The object's acceleration is increasing.
The object's speed is constant.
ব্যাখ্যা
A curve upward means acceleration is increasing.