Ms.Gibson made an initial deposit of $500 when opening a bank account. After the initial deposit, she deposited the same amount
of money each month. The table below shows the total amount of money, a, she deposited into the account after a certain number of months, t, since opening it. Write an equation to model the relationshipbetween t and a.
Let say the number of the months is t, the total amount of depo is a and a0 is the initial amount of money deposited. You can put it like this: a= f(t) = a0 + x*t
You can solve the equation by inserting two of any t value. If you use f(8)-f(4) it will be a0+ x(8)= 2500 a0+ x(4)= 1500 ___________- 8x- 4x= 1000 4x= 1000 x=250
Then the new equation would be: a= a0 + 250*t Putting f(4) value you can find a0 1500= a0+ 250*4 a0=1500-1000=500
She made the 6 into a five to make the 0 a 1 too early, because 24 can go into 60 twice, but in order to subtract the 8, you would then have to make the 6 into a 5 as well as the 0 into a 1.
