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help_people

  • one year ago

If h(x) = 5x − 3 and j(x) = −2x, solve h[j(2)] and select the correct answer below. 17 23 −17 −23

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  1. DanJS
    • one year ago
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    For a compound function like that,, figure the innermost one out first, then use that value and move outwards

  2. DanJS
    • one year ago
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    what is j(2) = ?

  3. help_people
    • one year ago
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    to be honest i have no clue @DanJS

  4. help_people
    • one year ago
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    -4? or 4?

  5. DanJS
    • one year ago
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    j(x) = -2x j(2) = -2 * 2 = -4

  6. DanJS
    • one year ago
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    Now to calculate h[j(2)] ... you use that value for j(2), for x in h

  7. DanJS
    • one year ago
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    h( - 4) = ...

  8. help_people
    • one year ago
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    Yay! I got it right (Sort of) and how would you find h(-4)

  9. help_people
    • one year ago
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    ^ @DanJS

  10. DanJS
    • one year ago
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    if h(x) = 5x-3 then h(-4) = 5*(-4) -3 = -20 - 3 = -23

  11. DanJS
    • one year ago
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    for those, work the inner function first, then keep using those output values and work outwards to the next function like we did

  12. help_people
    • one year ago
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    ok so am i done or i shtere more to go ?

  13. help_people
    • one year ago
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    @DanJS

  14. DanJS
    • one year ago
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    that is it, you figured the inner function out, which was -4, then you use that value in the outer function h(-4) that is it

  15. help_people
    • one year ago
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    sp the answer is -23 ? @DanJS

  16. help_people
    • one year ago
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    *so

  17. help_people
    • one year ago
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    and if it is ty so much :) @DanJS

  18. DanJS
    • one year ago
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    yes

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