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If (y=(2u+1)x+(u-2)) has (y)-intercept (6), what is the slope?

Answer and explanation

Correct answer: 17

In the form y=mx+c, the y-intercept is c. Here, u-2=6, so u=8. Therefore, the slope is m=2u+1=2(8)+1=17. Option 16 would result from incorrectly omitting the +1 term. Exam tip: first use the y-intercept to find the parameter, then substitute it into the slope expression.

Related tags

Linear EquationsSlopeY-InterceptParameterCoordinate GeometrySlope And Y InterceptIntroduction To PolynomialsMathematics

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