Exponentials

Hong Kong

Stage 4 - Stage 5

Consider the function $y=0.68\left(1.6\right)^x$`y`=0.68(1.6)`x`.

a

Identify what type of function this is:

Exponential growth

A

Exponential decay

B

b

What is the rate of growth?

Easy

Approx a minute

Consider the function $y=0.98\left(0.2\right)^x$`y`=0.98(0.2)`x`.

The local rodent population, numbering approximately $840$840, is decreasing at a rate of $4%$4% per year.

Luigi purchased a sculpture for $\$2900$$2900, and it is expected to increase in value by $9%$9% per year.

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