Could someone please help me with this question and explain it? Thanks.

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Why do interests rates on loans to be lower in a weak economy than in a strong one

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.