Scatter Plots with Linear Associations

What are the slope and the y-intercept of the line of best fit on this scatter plot?

A. The y-intercept is 8, and the slope is -4/3
B. The y-intercept is 8, and the slope is 4/3
C. The y-intercept is -8, and the slope is -4/3
D. The y-intercept is 8, and the slope is -3/4

The answer is A. - The y-intercept is 8, and the slope is -4/3.

Reshawn is buying 3 books in a trilogy set for $24.81.
He will save $6.69 by buying the trilogy set instead of buying individual books.
Each book costs the same amount
Let’s find out  how much does each of the 3 books cost when purchased individually.
=> 3 books costs = 24.81 dollar in which he saved 6.69 dollar compare to buying individual.
=> 24.81 + 6.69 = 31.5 dollars
=> 31.5 dollars / 3 = 10.5 dollars = the individual price of the books.