Question

Hypotheses

If the person moves faster, then the slope of the line does not change.
-----> If the person moves faster, then the slope of the line is steeper (higher).
If the person moves faster, then the slope of the line is less steep (lower).

What did you investigate?: Write about what you did.
What is the lab about?

Answer 1

This one is simple:

What did we investigate? Well, we investigated how the slope of the line is related to the person's speed. This is also what the lab was about. We hypothesized "if the person moves faster, then the slope of the line does not change." Our results: "If the person moves faster, then the slope of the line is steeper (higher).

If the person moves faster, then the slope of the line is less steep (lower)."

If you did an actual experiment then you can describe that as well.