Which relation does not represent a function?

(-4, 2), (1, 5), (-2, 0), (1, 6)

(-5, 3), (-3, 1), (0, -4), (3, -6)

(2, 0), (4, 6), (6, 8), (10, 6)

(-3, 6), (-1, 1), (0, 1), (3, 7)

Question

Which relation does not represent a function?

(-4, 2), (1, 5), (-2, 0), (1, 6)

(-5, 3), (-3, 1), (0, -4), (3, -6)

(2, 0), (4, 6), (6, 8), (10, 6)

(-3, 6), (-1, 1), (0, 1), (3, 7)

akshay_budhkar · Answer

third one?

anonymous · Answer

Explain why Akshay

anonymous · Answer

In order to be a function each x-value must go to a unique y-value.  We call this the vertical line test.

So which of your choices has different y-values for the same x-value?

anonymous · Answer

The third one is not correct, akshay.

akshay_budhkar · Answer

i believe coz for x=4 and 10 i is d same value y=10... i am n ot sure.. i am messing it in sleep i believe

anonymous · Answer

different x values can have the same y value.  for instance, the horizontal line y=5 has the same y value for *all* values of x...and it's a function.

anonymous · Answer

The test is to make sure that a particular x-value *only* maps to a single y-value.

aroub · Answer

(-4, 2), (1, 5), (-2, 0), (1, 6)