How to Linearize Data in Physics Lab

Physics Ninja looks at 3 examples of linearizing experimental data. In the first example i look at data from a simple pendulum. A linearized graph is generated to calculate little g (the acceleration due to gravity). In examples 2 and 3, I look at kinematic data from a cart accelerating down a ramp.

[ellainelee]

this might be too late but im doing almost the same assignment and im so confused is x supposed to be length? i thought it was supposed to be time?