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

For (x=-3) on the graph of (f(x)=x^2), what is the value of (y)?

Answer and explanation

Correct answer: ( 9 )

The direct answer is option D, 9. The graph y=x^2 means that the y-coordinate is found by squaring the given x-coordinate. For x=-3, y=(-3)^2=(-3)(-3)=9. Thus the graph contains the point (-3,9). Option D is correct. Option A, -9, forgets that the product of two negative numbers is positive. Option B, -6, is not the square of -3 and may come from multiplying by 2 or using an unrelated operation. Option C, 6, is also not obtained from the rule y=x^2. The important idea is that a square cannot be negative for a real number: x^2≥0. The minus sign is inside the square, so it disappears when the two equal negative factors are multiplied. Do not confuse (-3)^2 with -3^2; the former is 9, while the latter is conventionally -9 because the exponent applies before the leading minus. The supplied answer is consistent.

Related tags

Relations-FunctionsGraphsValue-From-Graph

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.