Question

Describe a graph that shows Sam running at a constant rate

Answer 1

The line would go up then stay at a constant (flat line)

Answer 2

If Sam runs are a constant rate, that means his speed won't variate, it'll be the same all the way.

This constant movement is described by a linear relation, which it's shown as a graph line, where the slope of such line describes the constant ratio of change between distance and time, because a constant movement is defined as constance distances covered in constant time intervals.

So, the best description for Sam's movement is a line, which simulates the liner relation between the distance and the time.