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Rule mapping each point to exactly one new point
Point (x,y)(x,y)(x,y) maps to (x+2,y+4)(x+2,y+4)(x+2,y+4)
(x,y)→(x+h,y+k)(x,y) \to (x+h,y+k)(x,y)→(x+h,y+k)
Same shape; all points move same distance & direction
x−hx - hx−h
x+hx + hx+h
y=f(x)+ky = f(x) + ky=f(x)+k
y=f(x)−ky = f(x) - ky=f(x)−k
y−k=f(x−h)y - k = f(x - h)y−k=f(x−h)
Express original coords in terms of new, then substitute
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