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Which of the following equations represents a line parallel to \(y=-3x+5\) and intersecting the \(y\)-axis at \(-2\)?

Answer and explanation

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

The given line \(y=-3x+5\) has slope \(-3\). Parallel lines must have the same slope. Also, in \(y=mx+c\), \(c\) is the y-intercept, which must be \(-2\) here. Therefore, the required equation is \(y=-3x-2\). Option C has the correct slope but its y-intercept is \(+2\). Exam tip: verify the slope first and then check the constant term for the y-intercept.

Related tags

SlopeY-InterceptParallel LinesLinear EquationsCoordinate GeometrySlope And Y InterceptIntroduction To PolynomialsMathematics

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