Use one equal-unit orthonormal Euclidean Cartesian frame. Reflect P=(11, 25) across the line y=−x. Find the image coordinates.
G001 — Use one equal-unit orthonormal Euclidean Cartesian frame. Reflect P=(11, 25) across the line y=−x. Find the image coordinates.
Definition and scope
Use the original question domain, assumptions and cited MKO definitions. This item has second-context mathematical and bilingual review, with the model, answer and every arithmetic step independently recomputed from the original parameters; the source question remains a candidate.
Follow THIS bank exact keys,domain/frame,operation and answer role.STR22/App20 tuples differ from legacy scalars;retain or omit/1 by the ORIGINAL contract,not a generic visual convention.
Transform ORIGINAL anti-diagonal negated y := sub(0, 25)
After
Transform ORIGINAL anti-diagonal negated y = -25
Conditions: none
Substitute exact ORIGINAL operands.Additional teaching algebra does not inherit raw-input caps;only declared SOURCE rational operations apply their own profile.
Transform ORIGINAL anti-diagonal negated x := sub(0, 11)
After
Transform ORIGINAL anti-diagonal negated x = -11
Conditions: none
Substitute exact ORIGINAL operands.Additional teaching algebra does not inherit raw-input caps;only declared SOURCE rational operations apply their own profile.
The FOUR declared axes give(x,-y),(-x,y),(y,x),(-y,-x),keeping the parallel component and reversing the perpendicular one.Do not confuse a line reflection with central inversion.
S004 · premise_and_result_audit — Reverse-check EACH original datum,index,direction,representative and premise,not only the answer.Exact candidate checking,independent review,formal proof and publication clearance remain separate.
S003 · premise_and_result_audit — Recompute Transform ORIGINAL anti-diagonal negated x with exact rational arithmetic, not rounded decimals.
S002 · premise_and_result_audit — Recompute Transform ORIGINAL anti-diagonal negated y with exact rational arithmetic, not rounded decimals.
S001 · premise_and_result_audit — Reverse-check EACH original datum,index,direction,representative and premise,not only the answer.Exact candidate checking,independent review,formal proof and publication clearance remain separate.
Result
(-25, -11)
The full substitutions and premise checks give the original answer; source identity,format and status are unchanged.
This question review and source binding
Review date: 2026-10-26
Original questions, answers, step expressions, numeric ASTs and historical records are retained. Source candidate labels remain historical and are not overwritten as formal proof.