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The equation of a line is \(4x-3y=15\). What is the slope of this line?

Answer and explanation

Correct answer: \(\frac{4}{3}\)

Rewrite the equation in slope-intercept form: \(4x-3y=15\Rightarrow y=\frac{4}{3}x-5\). In \(y=mx+c\), the coefficient of \(x\) is the slope \(m\), so the slope is \(\frac{4}{3}\). The value \(\frac{3}{4}\) is its reciprocal, not the slope. Exam tip: first isolate \(y\) and compare the equation with \(y=mx+c\).

Related tags

Relations And FunctionsGraphs Of FunctionsLinear EquationsSlopeSlope-Intercept FormSlope Of A Line And Angle Between Two LinesStraight LinesMathematics

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