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Class 12MathematicsRelations and FunctionsIntroduction to RelationsEasy
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If \(f(x)=2x+1\), what is the value of \(f(0)+f(1)\)?

Answer and explanation

Correct answer: 4

Core concept: Evaluate the function at given inputs by substituting the input into the formula. Step 1: \(f(0)=2\cdot0+1=1\). Step 2: \(f(1)=2\cdot1+1=3\). Step 3: Sum is \(1+3=4\), so the correct answer is 4. Why the closest distractor is wrong: option B (3) equals only \(f(1)\), not the sum. Exam tip: Compute each function value separately and then add to avoid mistakes.

Related tags

Function EvaluationLinear FunctionRelations And FunctionsClass 12EasyIntroduction To RelationsMathematicsClass 12 Mcq
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10 more MCQs
  1. 1If (A={1,2}), what does a relation on (A) mean?
  2. 2If (A={a,b}) and (B={1,2}), how many ordered pairs are there in (A\times B)?
  3. 3If (A={1,2}), how many total relations can be formed on (A)?
  4. 4Which relation is the universal relation on (A={1,2,3})?
  5. 5Which statement is correct about the empty relation?
  6. 6If (A={1,2,3}), how many pairs are there in the universal relation on (A)?
  7. 7Which pairs are compulsory in the identity relation on a set (A)?
  8. 8If (A={1,2,3}), which is the identity relation?
  9. 9What condition is necessary for a relation (R) to be reflexive?
  10. 10On (A={1,2}), which property is definitely satisfied by (R={(1,1),(2,2),(1,2)})?
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