Question

Which relation is a function?
(a) {(1, 1), (-1,2), (0, 3), (1, 4), (-2,5)}
(b) {(-1,-1),(-1, -2),(-1, -3), (-1,-4), (-1,-5)}
(c) {(-3,-1), (-2, 0), (-1, 1), (0, 2), (1,3)}
(d) {(-3,-3), (-2,-2), (-1,-1),(0, 0),(-1, 1)}

Answer 1

Answer:

C

Step-by-step explanation:

What makes a function is if each input or x-value has EXACTLY one output or y-value.

a. is wrong because the x value 1, has both an output of 1 and 4

b. is wrong because -1 is repeated 4 times with all different outputs

c. is correct because each input has exactly one output. None of the x values repeat itself

d. is wrong because -1 has 2 outputs.

so this is what makes a function and what doesn't. Hope this helps!

Answer 2

Answer:

b is the answer so circle b if youneed anything else cantact me

Step-by-step explanation:

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