Tool

Reflection Over y = mx + b Steps

Walk through translate, rotate, reflect, rotate-back, and translate-back for $y = mx + b$ .

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Inputs: Slope m, intercept b, and draggable point P before the sequence starts.

Outputs: Step-by-step transformed line/point states, angle θ cue, and final reflected coordinates P′.

Used for: Use for deriving and teaching the full reflection procedure for generic non-vertical lines.

geometrytransformationsreflectionderivationcoordinates