Question

Below is the graph of y-b^xFind b.

Answer 1

`b=(1)/(2)`

Explanation:

On the graph, we see that

if x=0 then y=1

if x=-1 then y=2

if x=-2 then y=4

b=1/2

`y=b^(-x)={(b^(-1))} ^(x)={((1)/(2)) }^x`