Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

If f(x) = x² − 1 and g(x) = x² + 1, what type of function is (g − f)(x)?

Answer and explanation

Correct answer: Constant positive function (2)

For the difference of two functions, (g − f)(x) = g(x) − f(x) = (x² + 1) − (x² − 1) = 2. The x² terms cancel, so the result remains 2 for every x; hence it is a constant positive function. Option B has the wrong sign, while option C results from adding rather than subtracting the functions. Exam tip: In (g − f)(x), subtract the entire first function from the second and change the signs inside its parentheses carefully.

Related tags

Relations-FunctionsAlgebra-Real-FunctionsDifference-Of-FunctionsConstant-FunctionAlgebra Of Real FunctionsRelations And FunctionsMathematicsClass 11 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.