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Mathematics20251 markAssertion-reasonApplications of Derivatives

Study the Assertion and Reason and choose the correct option.

f(x) is a quadratic function.

Assertion: $f(x)$ is a quadratic function.

Reason: Derivative of every quadratic function is linear.

  • (a)Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • (b)Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  • (c)Assertion is true and Reason is false.
  • (d)Assertion is false and Reason is true.
Figure for this question

Answer

Answer

Correct option: (b)

Answer: (b) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. The graph shows $f'(x)$ is a straight line (linear), so $f(x)$ is quadratic: the Assertion is true. The Reason is also true, but it states the converse (quadratic gives linear derivative), so it does not explain the Assertion.