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anonymous

  • one year ago

Referring to the figure, use the graph to estimate the roots of the equation: y = x2 - 2x - 8

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  1. anonymous
    • one year ago
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    and the figure is?

  2. anonymous
    • one year ago
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    Figure please

  3. anonymous
    • one year ago
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  4. anonymous
    • one year ago
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    oh not a parabola

  5. anonymous
    • one year ago
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    without the graph I can factor and find the answer: x^2 - 2x - 8 (x-4)(x+2) x-4 = 0 x = 4 x+2 = 0 x = -2

  6. anonymous
    • one year ago
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    roots: x = 4, x = -2

  7. anonymous
    • one year ago
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    Can you explain the process to me please?

  8. anonymous
    • one year ago
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    yes, from what the question is telling you to do: the roots are going to be the x-intercepts of the graph. therefore we just need to find the x-intercepts.

  9. anonymous
    • one year ago
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    which on the graph are clearly -2 and 4, do you see that?

  10. anonymous
    • one year ago
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    okay yes i see that

  11. anonymous
    • one year ago
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    so those are the solutions or roots

  12. anonymous
    • one year ago
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    Ohh okay thats so easy than thank you!!

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spraguer (Moderator)
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