which of the following mapping diagrams does not represent a function?
A.(-6,4)(-3,8)(4,6)(6,2)
B.(-10,5)(-7,3)(2,5)(4,3)
C.(3,4)(5,-2)(7,8)(7,12)
D.(-5,2)(-4,9)(8,9)(11,4)
The mapping diagram that does not represent a function is option C. (3,4)(5,-2)(7,8)(7,12).
This is because in a mapping diagram representing a function, each input value should have one and only one corresponding output value. In option C, the input value 7 is mapped to two different output values, 8 and 12.