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Class 9MathematicsIntroduction to PolynomialsSlope and y-interceptEasy
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Which line has slope (-4)?

Answer and explanation

Correct answer: \(y=-4x+1\)

In the form \(y=mx+c\), the coefficient of \(x\), namely \(m\), is the slope. In \(y=-4x+1\), the coefficient of \(x\) is \(-4\), so its slope is \(-4\). The line \(y=-x+4\) has slope \(-1\), not \(-4\). Exam tip: In \(y=mx+c\), identify the slope by checking the signed coefficient of \(x\).

Related tags

SlopeLinear EquationsCoordinate GeometryNegative SlopeGrade 9 MathematicsSlope And Y InterceptIntroduction To PolynomialsMathematics
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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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