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Which of the following equations represents a straight line with a negative slope and a y-intercept of 4?

Answer and explanation

Correct answer: \(2x+y=4\)

Rewriting option A gives \(y=-2x+4\). Therefore, its slope is \(-2\), which is negative, and its y-intercept is 4. Option D has a negative slope but intercepts the y-axis at 2. Exam tip: convert the equation to \(y=mx+c\) first.

Related tags

Linear EquationsSlopeY-InterceptCoordinate GeometryGrade 9 MathematicsSlope And Y InterceptIntroduction To PolynomialsMathematics

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