How does the graph show the change from Line W to Line X ? the slope W goes from -10,10 and line X goes from -3.5,3.5

There is a slope change from positive to negative and by a factor of 3.
There is a slope change from positive to negative and by a factor of 3.

There is a slope change from negative to positive and by a factor of 3.
There is a slope change from negative to positive and by a factor of 3.

There is a slope change from positive to negative and no factor change.
There is a slope change from positive to negative and no factor change.

The slope is changed by a factor of 3.

There is a slope change from negative to positive and no factor change.