A point on a coordinate grid is written as the pair (3, 5). Which statement about this pair is correct?
The 3 tells how far to move across from the origin, and the 5 how far to move up.✓Correct answer
The 3 tells how far to move up from the origin, and the 5 how far to move across.
The two numbers may be read in either order, since the point ends up in the same place.
The 3 and the 5 have to be added together to locate the point, giving a position 8 steps out from the origin.
Explanation
The pair is read in a fixed order, with the sideways movement written before the upward movement, so 3 counts steps to the right and 5 counts steps up. Swapping them lands on a different point entirely, and only a point whose two numbers match would survive such a swap unchanged.