We have covered a lot of ground and it is easy to get overwhelmed. In the end, we are basically studying a simple motion along $x$-axis and trying to quantify the rates of change of position $x$ and velocity $v_x\text{.}$ Figure 2.6.1 summarizes how to go from $x$ to $v_x$ to $a_x \text{,}$ and in the reverse order, from $a_x$ to $v_x$ to $x \text{.}$