Mrs. Miles asked her students to identify which values from the set (-8, -45,-4, -3, -2.5.0.5; satisfy the inequality -4x – 25 S-9. Which student is correct? Xavier: -8, -4.5, and -4 only
Kaylee: 0 and 5 only
Liang: -4, -3, -2.5, 0, and 5 only

- "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."

chiken

step-by-step explanation:

the awnser is visionary