Answer:
[tex]a = 3[/tex]
Step-by-step explanation:
To determine the value of [tex]a[/tex], we want [tex]b^x[/tex] to be 1, so that [tex]f(x) = a \times 1[/tex]. Notice that if [tex]x = 0[/tex], then [tex]f(0) = a \times (b^0) = a[/tex], so the value of [tex]a[/tex] is simply [tex]f(0)[/tex]. From the graph, it appears that [tex]f(0) = 3[/tex], so therefore [tex]a = 3[/tex].
