How can you estimate the speed of the runner by looking at a graph?

Experiment with a variety of graphs, focusing on the speed of the runner. In general, how can you estimate the speed of the runner by looking at a graph? You can estimate the speed by dividing the distance covered by the seconds it takes to cover that distance.

Explanation:

there ya go ^^

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.