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

If y = (t + 1)x − 4 and y = 8x + (2t − 3) have equal slopes, what is the y-intercept of the second line?

Answer and explanation

Correct answer: 11

Both equations are already in slope-intercept form y = mx + c, so the coefficients of x are their slopes. Equal slopes give t + 1 = 8, which leads to t = 7. The second line has constant term 2t - 3, so its y-intercept is 2(7) - 3 = 14 - 3 = 11. Therefore option A is correct. The number -4 is the intercept of the first line, not the second; 8 is the slope of the second line, not its intercept. The other choices do not result from the required substitution. Substituting t = 7 into the second equation produces y = 8x + 11, making the answer transparent and confirming that the y-intercept is the value of y when x = 0.

Related tags

Equal-SlopesParameter-SolvingY-InterceptSlope-InterceptSlope And Y InterceptIntroduction To PolynomialsMathematicsClass 9 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.