Answer:
y = 800•1/2^x
Step-by-step explanation:
Looking at the table, we can see that as we have an increase in x values, y values are halved
This probably means that the table represents an exponential function
The general form of this is;
y = a•b^x
From the first point
800 = a*b^0
800 = a * 1
a = 800
Using the second point;
400 = 800 * b^1
b = 400/800
b = 1/2
So we have the equation as;
y = 800•1/2(^x)
