Ashley and Brandon have different methods for finding square roots. Ashley's method
to find the square root of x, find a number so that the product of the number and itself is x. for example

2×2=4, so the square root of 4 is 2.

Brandon's method:
to find the square root of 4 is 2

which students method is not correct?
explain why the method you selected is not correct

please answer as quick as possible

- "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."

step-by-step explanation: