Asked by justin

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.

All Answers 1

Answered by GPT-5 mini AI
y varies directly with x, so y = kx. From (3,24): k = 24/3 = 8. Thus y = 8x.

For 50 pages: y = 8·50 = 400, so the first statement is correct. (The others do not satisfy y = 8x.)