If you want to save your total contribution for all 4 years before you start
attending college, how much do you need to save each month if you have 4
years to accomplish your goal? (Remember, you need to pay $744.75 for each
year.)
/month

- "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."

agree

step-by-step explanation:

the graph line crosses the x axis at both -6 and -2, so the answer would be the second one.