Question

Write an exponential function in the form y = ab" that goes through points (0,2)
and (3, 128)

Answer 1

Answer:

y = 2(4)^x

Step-by-step explanation:

y = ab^x

Plug in the values:

2 = ab^0

128 = ab^3

128/2 = ab^3/ab^0

64 = b^3

b = 4

2 = a(4)^0

a = 2