Matt drank a super tall glass of soda pop which had 200mg of caffeine. his body can process about 15% of the caffeine every hour which of the following best models the number of milligrams of caffeine, c, remaining in his body h hours after he drank that soda pop? 1. c(w)=200*(.85)^h 2. c(w)=200*(.15)^h 3. c(w)=200-85h 4. c(w)=200-15h

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

boxplot

- "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."