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ZWMath›Linear algebra›Linear transformations›Linear transformation›ZW-LINEAR-TRANSFORMATION-007
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AreaAlgebraCourseLinear algebraTopicLinear transformations
Systems and matrices6
  • System of linear equations
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Determinants4
  • Determinant
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Vector spaces7
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Linear transformations5
  • Linear transformation
  • Matrix of a linear transformation
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Eigenvalues and eigenvectors4
  • Eigenvalue and eigenvector
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Orthogonality5
  • Dot product
  • Vector norm
  • Orthogonal vectors
  • Orthogonal projection
  • Gram–Schmidt process

Exercise · ZW-LINEAR-TRANSFORMATION-007 · ★★☆ Intermediate

A linear transformation satisfies \(T(u)=(1,2)\) and \(T(v)=(3,-1)\). Compute \(T(2u-v)\).

Choose one option.

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  • D. (-1, 5)

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Explanation

\(T(2u-v)=2T(u)-T(v)=(2,4)-(3,-1)=(-1,5)\).

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Review the concept: Linear transformation

A linear transformation \(T\) is a function between vector spaces that preserves addition and scalar multiplication.

\[T(u+v)=T(u)+T(v),\quad T(cu)=cT(u)\]

More practice problems: linear transformation

  • ZW-LINEAR-TRANSFORMATION-001 Let T(x,y)=(2x,3y). What is T(1,1)?
  • ZW-LINEAR-TRANSFORMATION-002 Which of these functions from ℝ^2 to ℝ^2 is linear?
  • ZW-LINEAR-TRANSFORMATION-003 If T is a linear transformation, what is T(0)?
  • ZW-LINEAR-TRANSFORMATION-004 Let T(x,y)=(x+y, x-y). Compute T(2,3).
  • ZW-LINEAR-TRANSFORMATION-005 A linear transformation T satisfies T(1,0)=(2,1) and T(0,1)=(-1,3). Compute T(3,2).
  • ZW-LINEAR-TRANSFORMATION-006 A linear transformation satisfies T(1,1)=(3,1) and T(1,-1)=(1,5). What is T(1,0)?
  • ZW-LINEAR-TRANSFORMATION-008 Which of these geometric operations on the plane is NOT a linear transformation?
  • ZW-LINEAR-TRANSFORMATION-009 Let P be the space of polynomials. Which of these functions from P to P or to ℝ is linear?

← ZW-LINEAR-TRANSFORMATION-006 ZW-LINEAR-TRANSFORMATION-008 →

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