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Precalculus 7 Online
OpenStudy (anonymous):

Can someone help me? Find the function of the form f(x)=Ca^x whose graph is given. (2,12)

OpenStudy (anonymous):

what is written after f(x)= ?

OpenStudy (zehanz):

It is an exponential function. You need at least two points on the graph to be able to calculate C and a. The point (2,12) on the graph means that f(2) = 12, so\[f(2)=C*a^2=12\]If you had another point, you could get another formula like this and calculate C and a... ZeHanz

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