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Tabbiejack

  • 2 years ago

graph the function. identify the vertex and axis of symmetry. f(x)=-2x^2+2x-1

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  1. Bad2zBone
    • 2 years ago
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    Do you know what the function should look like?

  2. Tabbiejack
    • 2 years ago
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    |dw:1370231113472:dw|

  3. Tabbiejack
    • 2 years ago
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    |dw:1370231141279:dw|

  4. Bad2zBone
    • 2 years ago
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    Well that is a good start already. To work out the axis of symmetry, you need to work out the maximum y value, for example. To sketch the graph - you need to know some points |dw:1370231232831:dw|

  5. Bad2zBone
    • 2 years ago
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    Set y = 0 and solve the equation for x.

  6. Tabbiejack
    • 2 years ago
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    ok

  7. Bad2zBone
    • 2 years ago
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    Hold on

  8. Bad2zBone
    • 2 years ago
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    This function never crosses the x axis, therefore there would be no solutions for x.

  9. Tabbiejack
    • 2 years ago
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    o ok

  10. Tabbiejack
    • 2 years ago
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    so the answer is?

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