solve them please

) (20 points) It is assumed that there is a linear relationship between the obtained yield of apple trees and the amount of fertilizer supplied to them. In order to test this assumption, nine apple trees of the same type were randomly selected and supplied weekly with a fixed quantity (x grams) of fertilizer. The yield of each apple tree (y kilograms) was recorded. 3.9 6.4 6.9 4.0 5.0 8.0 1. Draw a scatter diagram of these data. Carefully label the diagram. (10 points). 2. Explain the type of the relationship between the two variables. (10 points)