Question

For every increase one on the ritcher scale an earthquake is 10 times more powerful which of the following models the situation

A.Linear function with a negative rate of change
B. Linear function with a positive rate of change
C. Exponential decay function
D.Exponential growth function

Answer 1

D. Exponential Growth.

Explanation:

Suppose the equation is y = 10^x which is an exponential function.

When x = 1 , y = 10, when x = 2, y = 10^2 = 100, when x = 3, y = 10^3 = 1000 which is 10 times more powerful for each unit increase of x.

The answer is Exponential growth.