U
solving a problem with an exponential equation
the value of an antique plate after x years can be modeled by f(x) = 18(1.05). which graph can be used to
approximate the number of years it will take for the plate's value to be $30?
f(x)
f(x)
120+
1.2 years
-10.5 years
(10.47.30)
(1.16.30)
100+
80+
60+
40+
-80 years
(30. 777)
20
to
-20+