When Hana goes to the mall, she always buys the same lunch and also buys some books. The table shows the number of books she buys, x, and the total amount of money she spends, y.

x 1 2 2 3 4
y 17 21 23 26 34

If this data were displayed in a scatter plot, select all statements that would be true about a good trend line summarizing the data. There can be multiple answers
A. The slope approximates the average cost of one book.
B. The slope approximates the cost of Hana's lunch.
C. The y-intercept approximates the average cost of one book.
D. The y-intercept approximates the cost of Hana's lunch.
E. The trend line goes through the origin.