human
Estimate the gradient at a point on a non-linear section of a real life graph The graph shows information about the velocity, \( v \mathrm{~m} / \mathrm{s} \), of a parachutist \( t \) seconds after leaving a plane.

Which of the following is the best estimate for the gradient of the curve when \( t=6 \) ![The image is of a velocity-time graph. There is a straight line, a tangent, drawn so that it is touching the curve at t=6. The tangent goes through (2, 31), (6, 47) and (8,55). ]() \( 46 \)
gpt
Does not understand the difference between a value on a graph and the gradient of a graph