Question

Which set of ordered pairs does not represent a function?

A{(-4,3), (8,3), (-2, 3), (7,7)}
B{(-2,-5), (0, -2), (9,9), (2,1)}
C{(9,3), (5, 4), (3, 3), (-6,3)}
D{(6,1), (8,2), (-4,5), (6,3)}​

Answer 1

A and C

Explanation:

By finding the areas of rectangles using the coordinates above, the following does not represent their functions

A) (-4,3), (8,3), (-2,3), (7,7) and C) (9,3), (5,4), (3,3), (-6,3)