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MrRa [10]
2 years ago
9

Help pls I attached a picture

Mathematics
1 answer:
seropon [69]2 years ago
8 0

Answer:

x= 7\sqrt{2}

Step-by-step explanation:

It's a 45 45 90 triangle

The legs are = x while the hypotenuse is x \sqrt{2}.

Therefore the answer is 7\sqrt{2}

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  vertex: (2, -3.2)

  axis of symmetry: x = 2

  zeros: x=0, x=4

  formula for axis of symmetry:

  • x = <x-coordinate of vertex>
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The vertex y-coordinate is the low point of this graph. It is not on a grid line, so we can only guess at its value. I choose to call it -3.2.

The vertex is (2, -3.2).

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b) The axis of symmetry is the vertical line through the vertex. The constant in its equation is the x-coordinate of the vertex:

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c) The zeros of the function are where the function crosses the x-axis. These are marked on the graph with red dots. The zeros are x=0 and x=4.

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d) When the quadratic is written in standard form, ax^2 +bx +c, the equation of the axis of symmetry is ...

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When there is no equation, the axis of symmetry can be found from the graph a couple of ways. One is to identify the x-coordinate of the vertex.

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  x = average of zeros = (z1 +z2)/2

If the quadratic is written in vertex form, the vertex coordinate is the constant in the equation for the axis of symmetry.

  y = a(x -h)^2 +k . . . . . quadratic with vertex (h, k)

  x = h . . . . . . equation of axis of symmetry

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