Tommy posts 11 pictures on instagram every day . elizabeth posts 15 pictures on instagram every day . part a : define each variable and write an algebraic expression to describe the combined number of posts for tommy and elizabeth after any given number of days part b : after 7 days , how many pictures have tommy and elizabeth posted altogether? how do you know ?

Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =