Answer:
[tex]b=\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]f(x)=b^{x}[/tex]
To find b we need to look at the graph and find a suitable point which lies on the graph to determine b. For example x=-1 gives y=2
[tex]f(-1)=b^{-1}=2 < = > \frac{1}{b}=2 < = > b=\frac{1}{2}[/tex]
