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If (p=-8) and (q=11) in (y=px+q), which statement is correct?

Answer and explanation

Correct answer: The line falls and its y-intercept is positive

In the form \(y=px+q\), \(p\) is the slope and \(q\) is the y-intercept. Here, \(p=-8<0\), so as \(x\) increases, \(y\) decreases and the line falls from left to right. Also, \(q=11>0\), so the line meets the y-axis at the positive point \((0,11)\). Therefore, option B is correct. Option C is incorrect because a horizontal line has slope 0, whereas the slope here is \(-8\). Exam tip: In \(y=mx+c\), the sign of \(m\) shows the direction of the line, while \(c\) gives the y-intercept.

Related tags

Linear EquationsSlopeY-InterceptCoordinate GeometrySign AnalysisGraph BehaviorSlope And Y InterceptIntroduction To Polynomials

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