Lucas conducted an experiment on the rate of water evaporation. he placed 500 ml of water in a measuring cup at room temperature and collected data on the amount of water in cup every day if the week. his result are shown in the data table to the righta. what is the rate of change in the amount of water in the cupb. at the same rate of evaporation how many days will it take for all of the water to evaporate

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

so, converting firstly the mixed fractions to improper fractions and then "adding".