A horizontal line along the X-axis shows the speed is zero, meaning that the vehicle has stopped, or is stationary, D. The table shows what each section of the graph represents: ...

Speed resistance lines help traders identify the trend and whether it will continue or reverse course. They are also useful in estimating resistance levels, which represent the point at which an ...

Here's a graph from a classic study by French researcher Michel Cabanac, published in 1986 in the Journal of the Experimental Analysis of Behavior: ...