Answer:
a=4
b=1/2
Explanation:
The exponential function is given as: ab^x
When x=0 , ab^0=4
⇒ a=4 (since, b^0=1)
When x=1, ab^1=2
4b=2
⇒ b=1/2
Hence, The values of a and b are:
a = 4
b = 1/2
if x =0 then b^0 = 1. You have your first constant.
y = a*b^0
4 = a * 1
Now you can pick 1 point to figure out b
x = 1
y = 2
y = a*b^x
2 = 4*b^1 but b^1 is just b
2 = 4* b
b = 2/4
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