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[9.01] Determine whether the graph of y = −2x2 − 3x + 10 opens up or down and whether it has a maximum or minimum point. Down and Maximum Down and Minimum Up and Maximum Up and Minimum

  • one year ago
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  1. inkyvoyd Group Title
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    a is negative, so can you give an estimate of what hte graph is shaped like?

    • one year ago
  2. AppleTV Group Title
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    opens down

    • one year ago
  3. inkyvoyd Group Title
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    Yup.|dw:1356634529314:dw| does that look like a maximum or a minimum?

    • one year ago
  4. AppleTV Group Title
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    maximum!

    • one year ago
  5. AppleTV Group Title
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    thanks!

    • one year ago
  6. philo1234 Group Title
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    If the coefficient on the x^2 term is negative the graph opens downward and has a maximum. If the coefficient on the x^2 term is positive the graph opens upwards and has a minimum. If you can't remember this plot the graph on your calculator.

    • one year ago
  7. inkyvoyd Group Title
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    Yup.

    • one year ago
  8. AppleTV Group Title
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    thanks for the medals!

    • one year ago
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