Chapter 7 - Exponents and Exponential Functions - 7-6 Exponential Functions - Practice and Problem-Solving Exercises - Page 451: 37

Decrease $x=-2, y=1111.1$ $x=-1, y=333.3$ $x=0, y=100$ $x=1, y= 30$ $x=2, y=9$ $x=3, y=2.7$

$x=-2, y= 100*.3^{-2}$ $y = 100*(1/.3)^2$ $y= 100 *1/.09$ $y = 100/.09$ $y = 1111.1$ $x=-1, y=100*.3^{-1}$ $y = 100*1/.3$ $y=100/.3$ $y= 333.3$ $x=0, y=100*.3^0$ $y= 100*1 = 100$ $x=1, y=100*.3^1$ $y= 100*.3 = 30$ $x=2, y=100*.3^2$ $y = 100*.09 = 9$ $x=3, y=100*.3^3$ $y = 100*.027 = 2.7$