Hugo recorded the height of each plant after he exposed each plant to a set amount of sunlight daily. The scatterplot shows his results after 2 weeks of exposing each plant to a set amount of sunlight.

Hugo should not include the outlier because it lessens the effect of showing that sunlight helps plants grow.

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My

Let analyse all possible answers:

True, because the height of the plant in the outlier point is shorter than the average so it lessens the effect of showing that sunlight helps plants grow.

Wrong, even he includes the outlier, it can not be the major reason in explaining the relation between hours of sunlight and plant height.

Wrong, as analysed in the answer A.

Wrong, as analysed in the answer B

=> we choose A

Hope it will find you well.

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation