Tell whether the sequence is arithmetic. If it is, what is the common difference?
19, 12, 5, negative 2
(1 point)
No
No
Yes; one-seventh
Yes; Image with alt text: one-seventh
Yes; 7
Yes; 7
Yes; negative 7
19, 12, 5, negative 2
(1 point)
No
No
Yes; one-seventh
Yes; Image with alt text: one-seventh
Yes; 7
Yes; 7
Yes; negative 7