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When the line \(6x+2y=18\) is written in the form \(y=mx+c\), what is its slope \(m\)?

Answer and explanation

Correct answer: -3

From the given equation, \(2y=-6x+18\). Dividing by 2 gives \(y=-3x+9\). Comparing this with \(y=mx+c\), the coefficient of \(x\) is \(m=-3\). Option 3 has the wrong sign. In an exam, identify the slope as the coefficient of \(x\) after isolating \(y\).

Related tags

Graphical MethodSlope Of A LineLinear EquationsSlope-Intercept FormGraphical Method Of Finding Solutions.Graphical Method Of Finding SolutionsPair Of Linear Equations In Two VariablesMathematics

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