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anonymous

  • one year ago

The points (3, 24) and (7, 56) represent points of a function where y, the number of photographs, varies directly with x, the number of pages in an album. Which statement describes another point on the graph of this function? (A) A 50-page photo album holds 400 photographs. (B) An 80-page photo album holds 560 photographs. (C) A 100-page photo album holds 8,000 photographs. (D) A 900-page photo album holds 8,400 photographs.

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  1. Nnesha
    • one year ago
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    Unit-test?

  2. welshfella
    • one year ago
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    y varies directly as x so y = kx where k is a constant from the given values of x and y you can calculate k

  3. welshfella
    • one year ago
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    y = kx plugging in values of x and y 24 = 3k and 56 = 7k can you solve these for k?

  4. welshfella
    • one year ago
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    what number times 3 equals 24?

  5. welshfella
    • one year ago
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    are you there?

  6. anonymous
    • one year ago
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    YEA 8

  7. anonymous
    • one year ago
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    Would it be neg or positive?

  8. welshfella
    • one year ago
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    thats correct so we have the relation y = 8x so lets look at the options. If we plug in the value of x fin the first option = that is 50 pages what is the value of y , the number of photos y = 8 * 50 = ?

  9. anonymous
    • one year ago
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    sorry i was looking at a wrong problem no neg

  10. welshfella
    • one year ago
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    If its = 400 then that statement describes another point on the line

  11. anonymous
    • one year ago
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    thank you

  12. welshfella
    • one year ago
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    ?

  13. anonymous
    • one year ago
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    the answer would be A right?

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