9/9 – Distance Time Graphs

Here are the ideas we plan to learn. It may seem like a lot, but it boils down to one simple concept – pay attention to how much y changes compared to how much x changes, and think about what these changes mean in the real-world.

For distance-time graph, up means going away and down means coming back. Down does not mean downhill.

For distance-time graph, horizontal means standing still since distance isn’t changing.

For distance-time graph, speed is the ratio of distance traveled over time elapsed.

For distance-time graph, if graph is a straight line, speed is constant.

For distance-time graph, steeper line means greater speed.

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