Please help! Thank you!

When only separate discreet points are graphed it is called?

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !