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If the slope is (-8) and (m+c=6) in (y=mx+c), what is the (y)-intercept?

Answer and explanation

Correct answer: 14

In the form (y=mx+c), (m) is the slope and (c) is the y-intercept. Here, (m=-8). Substituting in (m+c=6) gives (-8+c=6), so (c=14). Therefore, the y-intercept is 14. Choosing (-14) would give (-8-14=-22), which does not satisfy the given condition. Exam tip: In (y=mx+c), the constant term (c) is the y-intercept.

Related tags

Linear EquationsSlopeY-InterceptCoordinate GeometryAlgebraSlope And Y InterceptIntroduction To PolynomialsMathematics

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