Label the missing side and angle measurements

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.