y=3*10^kxyeah- I'm still stuck on this question.
I also tried this method
y= A x 10^kx
find A when x= 0 ( y= 3 at x=0)
y= 3x 10^kx
i tried to substitute in the point (1, 30) to find K but i kept getting 3.0959 which doesn't make sense.
anyone's thoughts on this would be greatly appreciated.