For every increase of one on the richter scale, an earthquake is ten times more powerful. which of the following models this situation?

linear function with a negative rate of change
linear function with a positive rate of change
exponential decay function
exponential growth function

➷ It would be 'exponential growth function'

Here is why:

10 x 1 = 10

10 x 10 = 100

100 x 10 = 1000

As you can see, the growth gets much bigger each time therefore it couldn't be a linear function. Also, as the values are getting larger, it would be a growth function.

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-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a