Michelle sells ice cream bars at the beach. In addition to a fixed salary, she earns a commission for each ice cream bar she sells. The table shows Michelle's total earnings, y, from selling x bars of ice cream: Ice Cream Sales and Earnings
Number of Bars Sold (x) Total Earnings (dollars) (y)
0 | 50
1 | 56
2 | 62
3 | 68

Which equation best shows the relationship between x and y?
y = x + 50
y = 6x + 50
y = 6x + 56
y = x + 56