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

In the line \(y=-\frac{5}{3}x+14\), how much should (x) increase to decrease (y) by (40)?

Answer and explanation

Correct answer: 24

The slope is \(-\frac{5}{3}\). Thus, for every increase of 3 units in \(x\), \(y\) decreases by 5 units. If the increase in \(x\) is \(\Delta x\), the decrease in \(y\) is \(\frac{5}{3}\Delta x\). Hence \(\frac{5}{3}\Delta x=40\), so \(\Delta x=40\times\frac{3}{5}=24\). Choosing 30 would decrease \(y\) by 50, not 40. Exam tip: a negative slope means that \(y\) decreases as \(x\) increases.

Related tags

Linear EquationsSlopeRate Of ChangeCoordinate GeometryChange In VariablesSlope And Y InterceptIntroduction To PolynomialsMathematics

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.