Answer:
a = 2000 , b = 0.6
Explanation:
given the equation of the exponential has the form
y = f(x) = a

use the coordinates of the points f(x) passes through
using (0, 2000 ) , then
2000 = a
[
= 1 ]
2000 = a × 1 = a , then
y = 2000

using (2, 720 )
720 = 2000 b² ( divide both sides by 2000 )
0.36 = b² ( take square root of both sides )
= b
b = 0.6
so a = 2000 and b = 0.6