Which of the following sets of ordered pairs represent a function? Check all that are true.

{(-3, 7), (-2, 7), (-1, 7), (0, 7), (1, 7)}

{(1.5, 3), (2.5, 3), (5, -3), (6, 2.5), (9, 11)}

{(-27, 15), (14, 2), (37, 0), (14, 15), (-3, 7)}

{(15, -2), (-2, 15), (11, 7), (-4, -4), (10.2, 3)}

{(1, 2), (3, 4), (5, 6), (6, 10), (7, 40)}

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

wait nvm i know the correct answer now its 100%   81 square feet

~batmans wife dun dun

160 cm

step-by-step explanation:

you have to add all the sides together