How many rows and columns must a matrix A have in order to define a mapping from R° into R° by the rule T(x) = Ax? Choose the correct answer below. A. The matrix A must have 8 rows and 9 columns. B. The matrix A must have 9 rows and 9 columns. C. The matrix A must have 8 rows and 8 columns. O D. The matrix A must have 9 rows and 8 columns. O O O

If y = 3 x + 1, then y 2 = _____.

Match these values of r with the accompanying scatterplots: - 0.385, 0.385, 0.997, - 0.767, and 1. Click the icon to view the scatterplots. Match the values of r to the scatterplots. Scatterplots Scatterplot 1, r = 0.385 Scatterplot 2, r= 0.997 Scatterplot 3, r = -0.767 Scatterplot 4, r = Scatterplot 1 Scatterplot 2 Scatterpl 8- R- 8- - 0.385 6- 6- 6- Scatterplot 5, r= 1 > 4- 4- 4- 2- 2- b- 0- 0- 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 х х Scatterplot 4 Scatterplot 5 15- 8- 14- 6- 13- 4- 12- 2- 11- 10- 0+ 1 0.2 0.4 0.6 0.8 0.2 0.4 0.6 0.8 х

Ty :)