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anonymous
 5 years ago
write a expotential function y=abx for a graph that includes (0,5)(2,45)
please explain
anonymous
 5 years ago
write a expotential function y=abx for a graph that includes (0,5)(2,45) please explain

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watchmath
 5 years ago
Best ResponseYou've already chosen the best response.0Plugin \((0,5)\) we have \(5=a\). Plug in \((2,45\) and \(a=5\) \(45=5\cdot b^2\) \(b^2=9\) \(b=\pm 3\) So \(y=5\cdot 3^x\) or \(y=5\cdot (3)^x\)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0well i think that you best take \[b=3\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0reason being then you don't have to worry about something like \[(3)^{\frac{1}{2}}=\sqrt{3}\]

watchmath
 5 years ago
Best ResponseYou've already chosen the best response.0Yes, just take b=3 :)
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