# MAT - Paper 2018 - Q1J

> Source: https://ollybritton.com/notes/maths/problems/mat/2018/q1j/ · Updated: 2021-10-27 · Tags: mat, notes, maths

## Flashcards
### 2021-10-27
##### If $$p(x) + p(y) = 0$$ what must be true about the coordinate $(a, b)$??
$(b,a)$ must also be on the graph.

##### ![PHOTO MAT 2018 Q1J](mat-2018-q1j.png) If the graph equation forming the graph is of the form $$p(x) + p(y) = 0$$ then why isn't this valid??
Because $p(x) + p(y)$ is the same as $p(y) + p(x)$, it should imply reflectional symmetry but there is none.

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