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)=x+4), what is (f(x)-f(0))?

Answer and explanation

Correct answer: (x)

The function adds 4 to its input. To find the requested difference, first calculate the function's value at zero. Subtracting this fixed value from the general value removes the added constant, so only the input-related part remains. This illustrates that a vertical shift by a constant disappears when two function values are compared in this way.

Substitute zero for the input: \(f(0)=0+4=4\). The general value is \(f(x)=x+4\). Therefore, \(f(x)-f(0)=(x+4)-4=x\). The constant terms cancel, leaving \(x\), which is option A. Option B is just the original function, and option D would incorrectly ignore the variable term.

Related tags

Function ValueAlgebraic SimplificationLinear Function

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.