First let's assume that the table contains points on a straight line. Then all we have to do is to determine the slope of that line.
Suppose we go from (0,3) to (7,-28.5).
-28.5-3 -31.5
Then the slope, m, is m = ------------- = ---------- = - 9/2, or - 4.5.
7-0 7
Let's check this result!
Suppose that y = mx + b governs the relationship between x and y.
Then y = -4.5x + b
suppose we find b by substituting the coordinates from the point (0,3):
3 = -4.5(0) + b
Then b = 3, and y = -4.5x + 3. Does the point (-2,12) satisfy this equation?
Does 12 = -4.5(-2) + 3? Does 12 = 9 + 3? YES.
So y = -4.5x + 3 is the equation from which these points came, and the rate of change of y with respect to x is the slope m = -4.5, or m = -9/2.
<span>There are lots of given in this certain item and we are
to note that other given are just there to distract us. In order to answer the
question, what we really need from the given is that there are 480 copies of
books and they arrived in 5 cartons. To determine the number of books in each
carton, we just have to divide 480 by 5 which gives us an answer of 96. </span>
I know this isn't an answer but I've totally borrowed your profile pic and I hope you don't mind.. xD
Answer:
2.1 is greater
Step-by-step explanation:
