When log y is plotted against X. a straight line graph passing through the points (2.2. 3.6) and (3.4.6) is obtained.

(i)
Given that y= Ab^x find the value of each of the constants A and b

(ii)
Find x when y=900

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?