Question

The number of members of an online community increases each month. The

function M(t) = N(1 + ) represents the number of members at month t, where
Nis the initial number of members and ris the rate of increase. Select the
correct statement.
O A. Nincreases each month.
B. The initial value is (1 + r).
C. The function is linear.
D. The value of Mis a product of Nand a factor that does not depend
on N.

Answer 1

Option D.

Explanation:

Note: The given function is incomplete. Consider the given function as
`M(t)=N(1+r)^t`.

The number of members at month t is

`M(t)=N(1+r)^t`

where,

N is the initial number of members.

r is the rate of increase.

t is number of months

Here, N is constant. So, option A is incorrect.

N is initial value and (1+r) is growth factor. So, option B is incorrect.

The given function is an exponential function.

The value of M is a product of N and a factor that does not depend on N.

Therefore, the correct option is D.