Question

the following table represents amount of vanadium-49 remaining in a sample of rock
day grams of vanadium-49
0 100
330 50
660 25
990 12.5

which type of function best models the given data?

Answer 1

This is an example of an exponential decay problem. 

The basic format of the equation is: $y=ab x^{123} x$

In this problem, the starting amount is 100. The rate is 0.5 because it is being cut in half every 330 days.

Answer 2

exoponential decay function