Mathematics for IGCSE & O level - Graphs In Practical Situations (Section 7 - No. 24)
If an object is moving 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
คำอธิบาย
Constant speed is represented by a straight line with a non-zero gradient.