Shown below are the scatter plots for four data sets. Answer the questions that follow.

y 1 2 3 4 5 6 7 8 9 10 11 x 1 2 3 4 5 6 7 8 9 10 11 0	y 1 2 3 4 5 6 7 8 9 10 11 x 1 2 3 4 5 6 7 8 9 10 11 0	y 1 2 3 4 5 6 7 8 9 10 11 x 1 2 3 4 5 6 7 8 9 10 11 0	y 1 2 3 4 5 6 7 8 9 10 11 x 1 2 3 4 5 6 7 8 9 10 11 0
Figure 1	Figure 2	Figure 3	Figure 4

(a)	Which data set appears to show a positive linear relationship between its two variables?	(Choose one)The data set in Figure 1The data set in Figure 2The data set in Figure 3The data set in Figure 4
(b)	Which data set appears to show a negative linear relationship between its two variables?	(Choose one)The data set in Figure 1The data set in Figure 2The data set in Figure 3The data set in Figure 4
(c)	Which data set appears to show a nonlinear relationship between its two variables?	(Choose one)The data set in Figure 1The data set in Figure 2The data set in Figure 3The data set in Figure 4
(d)	Which data set appears to show no relationship between its two variables?	(Choose one)The data set in Figure 1The data set in Figure 2The data set in Figure 3The data set in Figure 4