Which of the following states the conditions that the graph meets?

x ≤ 3

Step-by-step explanation:

The vertical line at x = 3 is solid and shaded to the left

Therefor

x ≤ 3

x≤3

Step-by-step explanation:

There is a solid line at x =3

The graph is shaded to the left and includes the solid line

x≤3

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."