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anonymous

  • 5 years ago

f(x)=2x^2+8x+7

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  1. anonymous
    • 5 years ago
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    what do u want to do with f(x)? its a quadratic representing a parabola.

  2. anonymous
    • 5 years ago
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    Yes it is a parabola. They question was given and then told to solve and graph

  3. anonymous
    • 5 years ago
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    You can use the quadratic formula to calculate its roots. Graphically, its a parabola with concave upwards and having 2 intersection points with the x-axis. I can give u the graph if u want.

  4. anonymous
    • 5 years ago
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    saubik. ok. that would be helpful

  5. anonymous
    • 5 years ago
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    the graph...

  6. anonymous
    • 5 years ago
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    Saubhik. Thanks!

  7. anonymous
    • 5 years ago
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    use the quadratic formula x=[-b+sqrt(b^2 -4ac)]/2a x=[-8+sqrt(8^2 -4*2*7)]/2*2 x=[-8+sqrt(64-56)]/4 x=[-8+sqrt(8)]/4 x={-8+2(2)^1/2]/4 x={-4+(2)^1/2]/2 the other is x={-4-(2)^1/2]/2

  8. anonymous
    • 5 years ago
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    using calc x=-1.29289 and the other is x=-2.707106781

  9. anonymous
    • 5 years ago
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    Got it. Thanks!

  10. anonymous
    • 5 years ago
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    wc

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