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Naddik [55]
3 years ago
14

Find the sum of the roots of the quadratic x^2+7x-13=0

Mathematics
1 answer:
ahrayia [7]3 years ago
3 0

x=-7√101/2

also -7√101 is over 2 if you couldnt tell

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Which equation represents a parabola that opens upward has a minimum at x=3 and has a line of symmetry at x=3
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Answer:

y=x^2-6x+5

Step-by-step explanation:

Let us consider the equation y=x^2-6x+5

For a quadratic equation in a standard form, y=ax^2+bx+c, the axis of symmetry is the vertical line x = \frac{-b}{2a}.

Here in this case we have, a=1, b=-6 , c =5

Putting the values we get,

x = \frac{-(-6)}{2\times 1} = \frac{6}{2} =3

We can see that the axis of symmetry is x=3 and the graph is giving minimum at x=3.

Therefore, the required equation is y=x^2-6x+5. Refer the image attached.


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