maths
posted by maths help .
a diagram shows the (exponential)graph of y=3e^kx. the graph goes through the points (0,3) and (4,18).
what is the value of k?
is it:
a)3/2e
b)1/4 log(smalle)6
c) 1/4 log(smalle)15
d) 1/18 log(smalle)4/3
could you please go over the working because i have no clue what to do...many thanks in advance

This is a duplicate post. See your other post for answers