## 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 (see below). To obtain the given graph, we 1. shift it down by 1 unit (red dotted) (The point (1,$-1)$ is the point (1,0) shifted down) So the given graph is the graph of $f_{1}(x)-1=\log_{3}x-1=h(x)$