The line of symmetry for the quadratic equation y

Ответ:

FlayMaster101

31.12.2021

Formula for the axis of symmetry ( or x-coordinate of the vertex ):
x = -b / 2a
2 = -(-8) /2 a
2 = 8 / 2a
2 a = 4
a = 2

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anna8352

31.12.2021

The value of a is 2

Step-by-step explanation:

The quadratic equation is y=ax^2-8x-3

The line of symmetry is x =2.

We know that the graph of quadratic function is a parabola and the line of symmetry of a parabola always passes through the vertex.

The line of symmetry is x =2.

And the x-coordinate of the vertex is $-\frac{b}{2a}$

Hence, we have

$2=-\frac{-8}{2a}\\\\4a=8\\\\a=2$

Thus, the value of a is 2

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alizeleach0123

18.05.2021

10%

? ? ? ? ? i think its probably not right

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