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anonymous

  • one year ago

Choose the equation below whose axis of symmetry is x = 2. y=x^2+4x+2 y=x^2-4 y=x^2-2 y=x^2-4x+2

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  1. Elsa213
    • one year ago
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    What do you think the answer is?

  2. anonymous
    • one year ago
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    I think its c but I don't know

  3. Elsa213
    • one year ago
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    I also think it is c. :o

  4. anonymous
    • one year ago
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    the axis of symmetry is x=-b/2a

  5. anonymous
    • one year ago
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    so if you plug in numbers into that formula which one do you think it is?

  6. anonymous
    • one year ago
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    b? @GretaKnows

  7. anonymous
    • one year ago
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    nope. the -4 is not b its c. so the axis of symmetry would be 0.

  8. anonymous
    • one year ago
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    o that makes sense thanks @GretaKnows

  9. anonymous
    • one year ago
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    so try d. y=x^2-4x+2 -(-4)/2*1

  10. anonymous
    • one year ago
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    --4 is +4 and 2*1 is 2. 4/2 is 2

  11. anonymous
    • one year ago
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    so you think d is the answer? @GretaKnows

  12. anonymous
    • one year ago
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    yep :)

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