## College Algebra (6th Edition)

(See table 4.5, Transformations involving Logarithmic functions) The parent function is $f_{1}(x)=\log_{3}x$, graphed with a dashed black line. To obtain the given graph, we 1. reflect about the x-axis (red dotted), and 2. shift up 1 unit (blue) (see graps below) So the blue graph is the graph of $1-f_{1}(x)=1-\log_{3}x=H(x)$