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Which of the following linear equations has a y-intercept of \(-3\)?

Answer and explanation

Correct answer: \(y=2x-3\)

In the form \(y=mx+c\), \(c\) is the y-intercept. For option A, \(y=2x-3\); putting \(x=0\) gives \(y=-3\). Hence, its y-intercept is \(-3\). In option C, \(-3\) is the slope, while option D can be written as \(y=\frac{x}{3}-\frac{2}{3}\). Exam tip: to find a y-intercept, put \(x=0\).

Related tags

Linear EquationsY-InterceptSlopeCoordinate GeometryClass 9 MathematicsSlope And Y InterceptIntroduction To PolynomialsMathematics

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