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crissy126

anyone know the vertex formula?

  • one year ago
  • one year ago

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  1. precal
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    |dw:1359309883413:dw|

    • one year ago
  2. precal
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    |dw:1359309894668:dw|

    • one year ago
  3. crissy126
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    i can do the first part how do you do the second part?

    • one year ago
  4. precal
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    once you find x, just sub x back into the original equation to find y

    • one year ago
  5. crissy126
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    ok how would you if x=20 sub it into y= -0.0375x^ + 1.5x to =15

    • one year ago
  6. precal
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    give me the original equation first

    • one year ago
  7. crissy126
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    ok it is y=-0.0375x^2+1.5x

    • one year ago
  8. precal
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    |dw:1359310208655:dw|ok your x is correct

    • one year ago
  9. precal
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    |dw:1359310292570:dw|(20,15) is your vertex

    • one year ago
  10. precal
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    you will use order of operation to evaluate it to become 15

    • one year ago
  11. crissy126
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    do you only add the 20 to the 2nd x?

    • one year ago
  12. precal
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    -.0375(400)+30 -15+30 15

    • one year ago
  13. precal
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    use order of operations Parenthesis Exponents Multiplication and division left to right addition and subtraction left to right

    • one year ago
  14. crissy126
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    ok thanks

    • one year ago
  15. precal
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    yw

    • one year ago
  16. crissy126
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    im doing a math project and i didnt get how to do a part and you helped me thx

    • one year ago
  17. precal
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    anytime

    • one year ago
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