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If (y=(k-6)x+13) and (y=5x+(k+2)) have equal slopes, what is (k)?

Answer and explanation

Correct answer: 11

In the form y = mx + c, the coefficient of x, m, is the slope. The first line has slope k - 6 and the second has slope 5. For equal slopes, k - 6 = 5, so k = 11. If k were 10, the first slope would be 4, so it would not match. Exam tip: identify the coefficient of x for the slope; the constant term does not affect it.

Related tags

Slope Of A LineLinear EquationsParameterCoordinate GeometryAlgebraSlope And Y InterceptIntroduction To PolynomialsMathematics

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