Given any exponential function in the form
[tex]y=ar^x[/tex]• If ,r >1, ,the function represents ,growth
,• If ,1 > r > 0,, the function represents ,decay
Notice that for
[tex]y=7\cdot(\frac{2}{3})^x[/tex]The exponential factor (2/3) is between 0 and 1 (0.66)
Therefore, the function represents decay.
Answer: Option A
