Question

Exponential function question

Answer 1

Answer:
`y = 850(0.943)^t`

Reason:

The exponential of the form
`y = a*b^x` has 'a' as the initial term and b as the growth or decay factor.

a = 850 is the starting amount

b = 1 + r = 1 + (-0.057) = 0.943 is the decay factor

If the sample loses 5.7% of its mass each year, then it keeps the remaining 94.3% of it.