What changes should Jonah make to the steps so he can successfully carry out his task? Steps 1 and 2 need to be switched. Steps 2 and 3 need to be switched. Steps 3 and 4 need to be switched. Steps 4 and 1 need to be switched.

its a straight line parallel to the time axis

- "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."