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If in (y=(a+8)x+a), the difference between slope and (y)-intercept is (8), which statement is correct?

Answer and explanation

Correct answer: It is true for every real value of a

For a line, the coefficient of x is its slope, so the slope is a+8. The constant term is the y-intercept, so the y-intercept is a. Their difference is (a+8)-a=8, which is true for every real value of a. Values such as a=8 or a=0 are only particular cases; the condition is not restricted to them. Exam tip: In y=mx+c, m is the slope and c is the y-intercept.

Related tags

Linear EquationsSlopeY-InterceptParametersAlgebraic IdentitySlope And Y InterceptIntroduction To PolynomialsMathematics

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