A tank is draining water such that the volume is given which an exponentially decreasing graph as shown in the graph below. If the volume was modeled with an equation of the form V=a(b)^t, where t is the number of hours then which of the following is the best value for b? (1) b=20
(2) b=0.6
(3) b=2.8
(4) b=0.3

Step-by-step explanation:

Given

See attachment for graph

From the graph

V = 20 when t = 0

This implies that:

Also:

V = 4 when t = 1.5

So:

Substitute 20 for a

Divide by 20

Take 1.5th root of both sides

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the median here is 25. your lowest value is 14 and highest value is 48. to find the third quartile, find the medium number in between 25 and 48 which would be 42 i believe.

0 is its x and y coordinate