The video shows a person's hand holding a pen and writing on a whiteboard. The hand writes the word "Slope" at the top of the board, followed by "Vertical change" and "horizontal change" with arrows pointing to the left and right respectively. The person then writes "Uphill" and "Downhill" next to the arrows. The hand then proceeds to draw a graph with a horizontal and vertical axis, and writes "of these lines negative slope?" next to it. The video ends with the person pointing to the graph.