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If a line has slope (-10) and (y)-intercept (8), which equation is correct?

Answer and explanation

Correct answer: \(y=-10x+8\)

The slope-intercept form of a line is \(y=mx+c\), where \(m\) is the slope and \(c\) is the \(y\)-intercept. Substituting \(m=-10\) and \(c=8\) gives \(y=-10x+8\). Option A has the wrong sign for the slope because its slope is \(10\). Exam tip: the coefficient of \(x\) gives the slope, while the constant term gives the \(y\)-intercept.

Related tags

Slope-Intercept FormLinear EquationsNegative SlopeY-InterceptCoordinate GeometrySlope And Y InterceptIntroduction To PolynomialsMathematics

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