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

Which option represents the correct interval form of \(x\leq -4\) or \(x>1\)?

Answer and explanation

Correct answer: \(\left(-\infty,-4\right]\cup\left(1,\infty\right)\)

The interval for \(x\leq -4\) is \(\left(-\infty,-4\right]\) because \(-4\) is included. The interval for \(x>1\) is \(\left(1,\infty\right)\) because \(1\) is excluded. The word “or” means the union of these two intervals, giving \(\left(-\infty,-4\right]\cup\left(1,\infty\right)\). Option B reverses the inclusion status of both finite endpoints. Exam tip: use square brackets for \(\leq\) or \(\geq\), and parentheses for strict inequalities.

Related tags

Linear InequalitiesInterval NotationUnion Of SetsEndpoint InclusionRepresentation On Number LineMathematicsClass 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.