SOLUTION: How would you write and exponential function whose graph passes through (0,0.4) and (2,6.4)?

Question 81611: How would you write and exponential function whose graph passes through (0,0.4) and (2,6.4)?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How would you write and exponential function whose graph passes through (0,0.4) and (2,6.4)?
----------------
Form y=ab^x
0.4 = ab^0
a=0.4
-------
y=0.4b^x
6.4=0.4b^2
16=b^2
b=4
------------------
EQUATION:
y=0.4(4)^x is the exponential equation passing thru the two points.
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Cheers,
Stan H.
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