Please help me The efficiency of a motor can be measured by the percentage of the input power that the motor uses. E(c) models the efficiency (in percentage points) of a certain motor as a function of the power input's current c (in amperes). Match each statement with the feature of the graph that most closely corresponds to it.

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.