1. Identify each statement as always, sometimes, or never true. Give an
example or counterexample to support
your answer. (MAPS.912 N-RN.23)
A. The sum of two rational
numbers is rational.
B. The sum of two irrational
numbers is irrational.
C. The sum of a rational and an
irrational number is irrational
D. The product of a nonzero
rational and an irrational number is
irrational
E. The product of two irrationa
numbers is irrational

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). =