Question

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.

Explanation:

Find the constant of variation

$$
LATEXBLOCK0
$$

Test the given options using the model

$$
LATEXBLOCK1
$$

Answer:

• (A) A 50-page photo album holds 400 photographs. (Correct answer)
• (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.