Which of the following sets of ordered pairs are not a function? A.(2,1), (3,4), (5,6), (2,7)

B.(3,1), (−3,1), (0,0), (5,1)

C.(1,1), (2,2), (3,3), (4,4)

D.(4,1), (6,7), (8,9), (4,7)

(2,4), (2,5), (2,6), (2,8)

True or false? a circle could be circumscribed about the quadrilateral below.

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.