Help pls?Write an exponential equation that has the points (0,180) and (2,80)

Answer 1

y = k*B^x

(0,180) --> 180 = f(0) = k*B^0 = k, so k=180

the function is y = 180*b^x

(2,80) ---> f(2) = 80 ---> 80 = 180 * b^2

80/180 = b^2

4/9 = b^2

b = 2/3

The exponential function is y = 180 * (2/3)^x