The radius of the circle is 3 millimeters. What is the circle's circumference? Use 3.14 for it
-3 mm
A 18.84
B 28.26
C 254.34
D 9.42

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