9514 1404 393
Answer:
 y = 3x +20
 $35 after 5 days
Step-by-step explanation:
The "slope" is the amount added each day. The "intercept" is the initial amount in the bank. If y represents that amount and x represents the number of days money is added, then the slope-intercept equation is ...
 y = 3x +20
When x=5, the value is ...
 y = 3(5) +20 = 15+20
 y = 35 . . . . amount of dollars in the bank after 5 days
