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If (y=(2u-3)x+(u+5)) has (y)-intercept (14), what is the slope?

Answer and explanation

Correct answer: 15

In the form y = mx + c, the y-intercept is the constant term c. Here, the y-intercept is u+5, so u+5=14 gives u=9. Therefore, the slope is 2u-3=2(9)-3=15. The value 13 is a distractor because it does not result from substituting the correct value of u into the slope expression. Exam tip: in y=mx+c, the coefficient of x is the slope and the constant term is the y-intercept.

Related tags

Linear EquationsSlopeY-InterceptParameterCoordinate GeometrySlope And Y InterceptIntroduction To PolynomialsMathematics

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