SOLUTION: Write an exponential function y=ab^x for a graph that includes (1,14) and (0,4).

Question 613919: Write an exponential function y=ab^x for a graph that includes (1,14) and (0,4).
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Write an exponential function y=ab^x for a graph that includes (1,14) and (0,4).
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y = ab^x
Solve for a and b:
Using (0,4) 4 = ab^0
4 = a*1
a = 4
------
Using a = 1 and (1,14)
14 = 4*b^1
b = 14/4 = 7/2
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Equation:
y = 4*(7/2)^x
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Cheers,
Stan H.
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