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 rule has initial value (25) and growth rate (4)?

Answer and explanation

Correct answer: (y=25+4x)

A linear rule written as y=a+bx has two clear parts. The constant term a is the initial value, because it is the value of y when x=0. The coefficient b is the change or growth rate for each one-unit increase in x. For an increasing rule, the rate should be positive. Therefore the required expression must have constant 25 and coefficient 4.

In option C, y=25+4x. At x=0, y=25, so the initial value is 25. When x increases by 1, y increases by 4, so the growth rate is 4. Option A reverses these roles, while option B represents a decrease because its rate is -4. Hence option C is the correct rule.

Related tags

Linear GrowthModel SelectionInitial Value

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.