Answer:
The function is even.
Step-by-step explanation:
Compare it to the definition of an odd function or an even function.
Odd function: if (x, y) is in the relation, then (-x, -y) is also in the relation. (The function is symmetrical about the origin.)
Even function: if (x, y) is in the relation, then (-x, y) is also in the relation. (The function is symmetrical about the y-axis.)
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The first point listed is (1, 2). If this function is odd, we expect to find (-1, -2). There is none such.
If this function is even, we expect to find (-1, 2). That is the third point listed, so it is possible this function is even. Comparing the other points to their even-function counterparts shows all of them match the definition of an even function.
