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itsmichelle29

  • one year ago

solve

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  1. itsmichelle29
    • one year ago
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    |dw:1436205578572:dw|

  2. itsmichelle29
    • one year ago
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    solve for f-1(5)

  3. itsmichelle29
    • one year ago
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    i medal and fan thanks

  4. Elsa213
    • one year ago
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    Are there any answer choices?

  5. itsmichelle29
    • one year ago
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    9 9 11 15 thanks

  6. itsmichelle29
    • one year ago
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    2 9 11 15 sorry

  7. Elsa213
    • one year ago
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    what do you think the answer is?

  8. Elsa213
    • one year ago
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    @itsmichelle29

  9. itsmichelle29
    • one year ago
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    2?

  10. Elsa213
    • one year ago
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    Why do you think it's 2?

  11. itsmichelle29
    • one year ago
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    IDK

  12. Elsa213
    • one year ago
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    @undeadknight26 cx

  13. welshfella
    • one year ago
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    first find the inverse of f(x)

  14. welshfella
    • one year ago
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    find x in terms of f(x) then replace f(x) by x

  15. itsmichelle29
    • one year ago
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    how?

  16. itsmichelle29
    • one year ago
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    |dw:1436206230427:dw|

  17. itsmichelle29
    • one year ago
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    thats all far as i get

  18. welshfella
    • one year ago
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    cross multiply 2(f)x = x - 1 x = 2f(x) + 1 f(-1)x = 2x + 1 thats the inverse of f(x)

  19. itsmichelle29
    • one year ago
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    -1?? theres no answer

  20. welshfella
    • one year ago
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    now f-1(5) is the value of the above when x = 5

  21. welshfella
    • one year ago
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    no the inverse is 2x + 1

  22. welshfella
    • one year ago
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    f-1 (x) = 2x + 1

  23. itsmichelle29
    • one year ago
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    Ohh so the answer is 11 right

  24. welshfella
    • one year ago
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    yes

  25. itsmichelle29
    • one year ago
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    thank you can you help me with another one

  26. welshfella
    • one year ago
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    ok one more

  27. itsmichelle29
    • one year ago
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    What is the equation in point-slope form of the line passing through (0, 6) and (1, 3)? (y - 3) = -3(x - 1) (y + 3) = 3(x + 1) (y + 3) = -3(x + 1) (y - 3) = 3(x + 6)

  28. itsmichelle29
    • one year ago
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    I think its either A or C ??

  29. welshfella
    • one year ago
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    point slope form is y - y1 = m(x - x1) where m = slope and (x1,y1) is a point on the line

  30. itsmichelle29
    • one year ago
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    Oh so its C

  31. welshfella
    • one year ago
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    here x1 = 0 and y1 = 6

  32. itsmichelle29
    • one year ago
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    Yes?

  33. welshfella
    • one year ago
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    x = 1 when y = 3

  34. itsmichelle29
    • one year ago
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    Oh so A thanks

  35. welshfella
    • one year ago
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    m is the slope you need to find what that is slope = rise/run = difference in y values / differnce in x values

  36. welshfella
    • one year ago
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    yes A is correct

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