Posted by Rachel on Tuesday, February 19, 2013 at 5:51pm.
Find the exponential function f(x)=Ca^x whose graph goes through the points (0,3) and (2,12).

math  Reiny, Tuesday, February 19, 2013 at 6:47pm
for (03) > 3 = C a^0
3 = C (1)
so C = 3
for (2,12)  12 = 3a^2
4 = a^2
a = 2
f(x) = 3 (2)^x