Mathematics for IGCSE & O level - Graphs In Practical Situations (Section 2 - No. 38)
What does the slope of the tangent at a point on a curved distance-time graph give you?
The average speed over the entire time period.
The instantaneous speed at that point.
The acceleration at that point.
The total distance traveled.
Wyjaśnienie
The tangent at a point provides the instantaneous rate of change (speed) at that specific time.