Using the table below, write a function rule for the balance in the cd account after any number of years. let y represent the value of the investment at the end of any year x.
cd/year
beginning balance
interest earned
ending balance
savings account/year
beginning balance
interest earned
ending balance
1
$700
$22
$722
1
$700
$25.90
$725.90
2
$722
$22
$744
2
$725.90
$26.86
$752.76
3
$744
$22
$766
3
$752.76
$27.85
$780.61
4
$766
$22
$788
4
$780.61
$28.88
$809.49
5
$788
$22
$810
5
$809.49
$29.95
$839.44