21. How would the graph of the linear function y=3x-1 change if the slope remained the same and the y-intercept was changed to 2? *

A. It would move down 3 units on the y-axis, away from the x-axis

B. It would move left 3 units on the x-axis, away from the y-axis

C. It would move up 3 units on the y-axis, crossing over the x-axis

D. It would move right 3 units on the x-axis, crossing over the y-axis

You also have to have an explanation for your answer to get the full 30 points

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.

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25