Final answer:
The correct algebraic equation that represents y, the total number of books read in x months, is y = (5/3)x, which is a linear equation demonstrating a direct relationship between months and books read.
Step-by-step explanation:
The student has asked to create an algebraic equation to represent y, the total number of books read in x months, given that John reads 5 books every 3 months. To create the equation, we have to figure out how many books he would read in just one month, which would be 5 books divided by 3 months. This gives us the rate of books per month. Therefore, the algebraic equation that represents the relationship is y = (5/3)x. This means for every month (x), we multiply it by 5/3 to get the total number of books (y).
The main explanation for the equation is that it's a direct relationship between the number of months and the number of books read, which can be classified as a linear equation, similar to the examples provided such as y = 6x + 8 and y = 9 + 3x, where you have a constant rate of change (the number of books per month in this case).