Question 399600: write an exponential function of the form y = ab^x whose graph passes through the points given. (2, 12) (3, 144)
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! write an exponential function of the form y = ab^x whose graph passes through the points given. (2, 12) (3, 144)
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144 = ab^3
12 = ab^2
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Divide and solve for "b":
12 = b
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Solve for "a":
12 = ab^2
12 = a*12^2
a = 1/12
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Equation:
y = (1/12)*12^x
y = 12^(x-1)
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Cheers,
Stan H.
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