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10 questions from this quiz
Speed at one specific moment in time
Gradient of tangent to curve at that point
A line touching curve at exactly one point
Secant connects 2 points; tangent touches 1
ΔdΔt\frac{\Delta d}{\Delta t}ΔtΔd
Draw a tangent and calculate its gradient
Smaller intervals give more accurate results
The secant approaches the tangent
Same direction/slope as the curve
The interval shrinks to zero
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