COMPOSITION OF TRANSFORMATIONS + FACTORING
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Last updated 9:08 PM on 6/22/26
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7 Terms
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R₉₀° circle T₃,-₄
Do the translation first, rotation second.
When you see the circle, work from right to left.
Translation to the right by 3 units and down by 4 units, followed by the rotation of 90.
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Composition of 2 reflections over 2 parallel lines =
Translation
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Composition of 2 reflections over 2 intersecting lines =
Rotation
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Rotational symmetry theorem
Regular polygon with x sides always has rotational symmetry, the rotations in increments equal to its central angle of 360°/n.
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GREATEST COMMON FACTOR
ab + ac = a(b + c)
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DOTS (diff of two perf squares)
x² — y² = (x + y)(x - y)
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TRINOMIALS
x² — x + 6 = (x+2)(x-3)