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The line (y=-2x+b) has (y)-intercept (-6). Which equation is correct?

Answer and explanation

Correct answer: \(y=-2x-6\)

In the form \(y=-2x+b\), the constant term \(b\) is the \(y\)-intercept. Since \(b=-6\), substituting it gives \(y=-2x-6\). Option C has the correct intercept but changes the coefficient of \(x\) from \(-2\) to \(+2\). Exam tip: in \(y=mx+c\), \(c\) is directly the \(y\)-intercept.

Related tags

Linear EquationsY-InterceptSlope-Intercept FormSubstitutionCoordinate GeometrySlope And Y InterceptIntroduction To PolynomialsMathematics

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