Answer:
[tex]y=8(\frac{1}{2^x})[/tex]
Step-by-step explanation:
Given is a graph which shows decrease in y when x increases.Marked in the I quadrant.
Coordinates in the graph are
(0,8),(1,4)(2,2)(3,1)
We find that for one unit change in x, there is 1/2 change in y
When x increases by 1 units y becomes y/2
So the equation is exponential
Equation satisfying all the coordinates can be written as
[tex]y=8(\frac{1}{2^x})[/tex]
