Mathematics, 28.06.2019 05:00 rachael382
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 50-page photo album holds 400 photographs. an 80-page photo album holds 560 photographs. a 100-page photo album holds 8,000 photographs. a 900-page photo album holds 8,400 photographs
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![\bf (\stackrel{x_1}{3}~,~\stackrel{y_1}{24})\qquad (\stackrel{x_2}{7}~,~\stackrel{y_2}{56}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{\stackrel{photos}{56-24}}{\stackrel{pages}{7-3}}\implies \cfrac{32}{4}\implies \cfrac{\stackrel{photos}{8}}{\stackrel{pages}{1}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{\stackrel{photos}{400}}{\stackrel{pages}{50}}\implies \cfrac{8}{1}\leftarrow \textit{a 50 pages album holds 400 photos}](/tpl/images/1275/2493/a5a78.png)
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The points (3, 24) and (7, 56) represent points of a function where y, the number of photographs, va...
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