A = p(1+r)^t
1600 = p(1+0.08)¹⁰
P = 1600/2.1589
P= 741.12
741.12 dollar money did you originally deposit into your savings account!
A function must have one y-value for any given x-value.
Usually, if you see the same x-value in the x-column more than once, that's not going to be a function, because that usuall makes a single x-value pair with more than one y-value.
This would be NOT be a function, because x-value of 3 is paired with two different y-values.
<u> x | y</u>
3 7
4 8
3 9
6 7
Can you identify the function?
You would take 1.423 - .02 = 1.403
$3.10 because if you divide 12.40 and 4 you will get that answer
