Is this relation a function? Justify your answer A. Yes, because the number of x-values is the same as the number of
yvalues.
B. No, because two points with the same y-value have different *
values.
C. Yes, because every x- and y-value is positive.
D. Yes, because every x-value has a single y-value.

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.