How do you find the range of #f(x)=3^(x+9)+4#?

1 Answer
Nov 27, 2015

Answer:

The range is #x in (4;+oo)#

Explanation:

The exponential fonction #y=a^x# has a range of #(0;+oo)#.

The graph of function #y=3^(x+9)+4# is the graph #y=3^x# moved #9# units to the left and #4# units up. Moving a graph of a function with bounded values up increases the boundaries, so #f(x)# has only values greater than #4#.