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Straight Lines

Select the co...

Question

Select the correct graph for the equation y = (x-m)(x-n), if m > 0 and n < 0.

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Solution

The correct option is B

y = (x-m)(x-n)

$y = x^{2} + (m + n) x + m n$

Since a is positive, it is upward opening graph.

One root is greater than 0 and another is less than 0

So, the solution in option b is perfectly representing the graph of given equation.

Suggest Corrections

Similar questions

Select the correct graph for the equation $y = - x^{2} + (m + n) x + m n$ , if m > 0 and n > 0.

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(x + p) (x + q) - k = 0

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y [n] - 2 y [n - 1] + y [n - 2] = x [n] - x [n - 1]

y [n] = 0, f o r, n < 0, a n d, x [n] = δ [n], t h e n y [2]

x = - 3

x = \frac{2}{3}

{m x}^{2} + 7 x + n = 0

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If the lines $l x + m y + n = 0, m x + n y + l = 0$ and $n x + l y + m = 0$ are concurrent then ( $l, m, n \neq 0$ )

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