Tangela earns the same amount each week by babysitting. When she started this job, she had $200 in her savings account. The table shows Tangela's savings account balance for her first month of work.

Week 0 1 2 3 4
Balance $200 $350 $500 $650 $800

Let x represent the number of weeks Tangela has been working and let y represent Tangela's account balance.

Which equation, expressed in Slope-Intercept form, represents the amount of money in Tangela's bank account over time?