anonymous
  • anonymous
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.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Nnesha
  • Nnesha
Unit-test?
welshfella
  • welshfella
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
welshfella
  • welshfella
y = kx plugging in values of x and y 24 = 3k and 56 = 7k can you solve these for k?

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welshfella
  • welshfella
what number times 3 equals 24?
welshfella
  • welshfella
are you there?
anonymous
  • anonymous
YEA 8
anonymous
  • anonymous
Would it be neg or positive?
welshfella
  • welshfella
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 = ?
anonymous
  • anonymous
sorry i was looking at a wrong problem no neg
welshfella
  • welshfella
If its = 400 then that statement describes another point on the line
anonymous
  • anonymous
thank you
welshfella
  • welshfella
?
anonymous
  • anonymous
the answer would be A right?

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