Answer: third option
Step-by-step explanation:
By definition, for the function [tex]y=b^x[/tex] if 0<b<1 then the function decreases from left to right
Therefore, it cannot be the options 1 or the option 2.
As the function given in the third option of problem has a negative coefficient (which is -2) and b=0.3 (0<b<1)
[tex]y=-2*0.3^x[/tex]
Then, each ouput value wil be negative.
Therefore, you can conclude that the function [tex]y=-2*0.3^x[/tex] decreases and going downwards from left to right.
