If the relation is a function, list the domain and range. If the relation is not a function, choose "not a function".

C = {(9, 1) (8, -3) (7, 5) (-5, 3)}

not a function
Domain: {9, 8, 7, -5} Range: {1, -3, 5, 3}

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance

The pair of coordinates that do not represent the point( 5,150’) is a. (5,-210) b. (5,210) c. (-5,330) d. (-5,-30)

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.