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Class 9MathematicsIntroduction to PolynomialsSlope and y-interceptHardLevel 40

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

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Answer and explanation

Correct answer: (13)

Equal slopes give (t+1=8) and (t=7). The second line's (y)-intercept is (2t-3=11), so option (A) is correct.

Tags

compare_slopesfind_interceptparameter

Frequently asked questions

What is the correct answer to this question?

(13)

Why is this the correct answer?

Equal slopes give (t+1=8) and (t=7). The second line's (y)-intercept is (2t-3=11), so option (A) is correct.

Which subject and chapter does this question cover?

This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Slope and y-intercept.

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10 more MCQs
  1. 1What is the slope of the line (y=2x+5)?
  2. 2What is the (y)-intercept of the line (y=3x-4)?
  3. 3What is the slope of the line (y=-x+7)?
  4. 4What is the slope of the line (y=8-2x)?
  5. 5What is the (y)-intercept of the line (y=x+9)?
  6. 6What is the slope of the line (y=5x)?
  7. 7What is the (y)-intercept of the line (y=-6)?
  8. 8In the form (y=mx+c), what does (m) represent?
  9. 9In the form (y=mx+c), what does (c) represent?
  10. 10Which line has slope (4) and (y)-intercept (1)?
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