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

How many endpoints are open in (-2<x<1) on the number line?

Answer and explanation

Correct answer: (2)

An open endpoint means that the boundary value is not included in the solution. A strict inequality, shown by < or >, always excludes its boundary. Thus an open circle is used at that endpoint. A closed circle would be used only for an inequality containing equality, such as \(\le\) or \(\ge\).

Here the interval is \(-2<x<1\). The value \(-2\) is excluded because \(x\) must be greater than it, and the value \(1\) is excluded because \(x\) must be less than it. Therefore, the number line has an open circle at both \(-2\) and \(1\), giving a total of two open endpoints. Hence option C follows.

Related tags

Linear-InequalitiesCount-EndpointsOpen-Interval

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.