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Which of the following equations represents a line that passes through the origin and has a negative slope?

Answer and explanation

Correct answer: \(y=-2x\)

In \(y=mx+c\), \(m\) is the slope and \(c\) is the y-intercept. For \(y=-2x\), \(m=-2\) and \(c=0\), so it passes through the origin. Exam tip: check \(c=0\) first for an origin-passing line.

Related tags

Linear EquationsSlopeY-InterceptCoordinate GeometryGraphsMathematics Class 9Slope And Y InterceptIntroduction To Polynomials

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