Question

Eric has $27.00 and wants to buy comic books. If each comic book costs $4.00, create a table and graph the arithmetic sequence to display how much money Eric has left after each comic book purchase. Which graph is an accurate representation of the problem?(1 point)
Responses

Four points showing a decrease in money remaining with an increase in number of comic books are plotted on a coordinate plane. The y-axis is labeled money remaining. The x-axis is labeled number of comic books.
▶Click for Long Desc
Image with description Four points showing a decrease in money remaining with an increase in number of comic books are plotted on a coordinate plane. The y-axis is labeled money remaining. The x-axis is labeled number of comic books.

Four points showing a decrease in money remaining with an increase in number of comic books are plotted on a coordinate plane. The y-axis is labeled money remaining. The x-axis is labeled number of comic books.
▶Click for Long Desc
Image with description Four points showing a decrease in money remaining with an increase in number of comic books are plotted on a coordinate plane. The y-axis is labeled money remaining. The x-axis is labeled number of comic books.

Four points showing a decrease in money remaining with an increase in number of comic books are plotted on a coordinate plane. The y-axis is labeled money remaining. The x-axis is labeled number of comic books.
▶Click for Long Desc
Image with description Four points showing a decrease in money remaining with an increase in number of comic books are plotted on a coordinate plane. The y-axis is labeled money remaining. The x-axis is labeled number of comic books.

Four points showing a decrease in number of comic books with an increase in money remaining are plotted on a coordinate plane. The y-axis is labeled number of comic books. The x-axis is labeled money remaining.

Answer 1

Table (number bought n, money remaining M):

- n = 0 → M = 27
- n = 1 → M = 23
- n = 2 → M = 19
- n = 3 → M = 15
- n = 4 → M = 11
- n = 5 → M = 7
- n = 6 → M = 3

Formula: M = 27 − 4n (arithmetic sequence with common difference −4).

Correct graph: the one with the x-axis = number of comic books and the y-axis = money remaining showing points that decrease as the number of comics increases (i.e., a downward-sloping set of points). The last option (axes reversed) is incorrect.