The slope indicates how y-changes with an increase of one unit in x-value. In this case, it indicates the weight of one apple.
Then, the slope indicates that the average weight of an apple is 0.32 pounds.
The y-intercept indicates the y-value when x is zero. In this exercise, if x = 0, there will be no apples, then the weight is the weight of the basket.
Then, the y-intercept represents the weight of the basket when it is empty.