Andrei has a glass tank that he would like to fill with marbles and water.
W(m) models the amount of water Andrei needs (in liters) if he uses m marbles.
m 10 32 68
W(m) 36.5 28.8 16.2
When does the necessary amount of water decrease faster?

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

8

step-by-step explanation:

5/12, or 5: 12

step-by-step explanation: