### Home > CC3 > Chapter 8 > Lesson 8.2.3 > Problem 8-99

8-99.

The table below shows the amount of money Francis had in his bank account each day since he started his new job.

*8-99 HW eTool*(Desmos). Homework Help ✎Days at

New JobMoney in

Account0

$27

1

$70

2

$113

3

$156

Write a rule for the amount of money in Francis’s account. Let *x*represent the number of days and*y*represent the number of dollars in the account.When will Francis have more than $1000 in his account?

Look at the chart and see if you can determine a pattern.

*y* = 43*x* + 27

Set *y* = 1000 and then solve the equation for *x*.*y* = 43*x* + 27

Use the eTool below to help complete the problem.

Click the link at right for the full version of the eTool: *CC3 8-99 HW eTool*