Consider the model of exponential growth or decay given by A = A exp(kt). If k the function models amount or size of a growing entity if k the models amount size of a decaying entity'.

which answers are

a >0; <0
b =0;=/0
c >0; <0
d <0; <0

(a) >0;<0

Step-by-step explanation:

We are given that an exponential function

We have to find the correct answer.

Differentiate w.r.t t

If k is positive

i.e k>0

Then,

Hence, the function is increasing.

When k is negative

i.e k<0

Then,

Hence, the function is decreasing.

If k>0 the functions models amount or size of a growing entity if k<0 the models amount size of a decaying entity.

Option (a) is true.

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap