Do you guys understand this an quite not sure how but help how its done, no link plz

Step-by-step explanation:

is the slope, is the y-intercept

in order for the lines to be parallel they must have the same . we can find the slope of MN by subtracting ,

, , ,

is your slope.

Now write the equation as and for your and values use Point P: (6,1)

Final equation:

- "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."