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) 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.

Answer 1

Unit-test?

Answer 2

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

Answer 3

y = kx
plugging in values of x and y
24 = 3k and 56 = 7k

can you solve these for k?

Answer 4

what number times 3 equals 24?

Answer 5

are you there?

Answer 6

YEA 8

Answer 7

Would it be neg or positive?

Answer 8

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 = ?

Answer 9

sorry i was looking at a wrong problem no neg

Answer 10

If its = 400 then that statement describes another point on the line

Answer 11

thank you

Answer 12

?

Answer 13

the answer would be A right?