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anonymous

  • one year ago

Wendy is logging the number of video game levels she wins per hour. She has determined the function to be f(x) = 6x + 9, where x represents hours and f(x) represents the number of video game levels won. Which of the following options describes the restrictions to the domain and range correctly? Domain, nonnegative values; range, values greater than −1.5 Domain, nonnegative values; range, values less than −1.5 Domain, nonnegative values; range, nonnegative values Domain, nonnegative values; range, values greater than 9

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  1. anonymous
    • one year ago
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    You know the smallest number in the domain is 0 and f(x) is increasing with x. Plug 0 in for x in 6x + 9 to get the smallest number of the range.

  2. anonymous
    • one year ago
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    I realize that she can do 0 hours of gaming, which would lead to 9 levels, yet , it told me that was wrong

  3. anonymous
    • one year ago
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    I had chosen D, and it was marked wrong. :/

  4. anonymous
    • one year ago
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    I guess they're looking for non-negative values for the range, which doesn't quite make sense if they restricted the domain

  5. anonymous
    • one year ago
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    -1.5 doesn't makes sense at all given the context b/c she can't play -1.5 games.

  6. anonymous
    • one year ago
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    Thanks peachpi :)

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