5. The graph of a function is a line that passes through the points (0,1) and
(3,10).
Part A
Which shows how to find the rate of
change for the function?
0-3
1 - 10
3-1
B
10 - 3
© 19-0
Part B
Write an equation in the form
y = mx + b for this function.

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! "?