Trey buys his favorite fishing lure in quantity. The total amount, y, Trey pays for his purchase is proportional to the number, x, of favorite lures he buys. Each lure's price is $1.25. Which equation represents the total amount of Trey's purchase of his fav lure?

A) y = 1.25x

B) y = x
-----
1.25

C) y = + 1.25

D) y = 1.25
------
x

The correct equation that represents the total amount of Trey's purchase of his favorite lure is:

A) y = 1.25x

The equation that represents the total amount of Trey's purchase of his favorite lure can be found using the concept of proportionality.

Since each lure's price is $1.25 and the total amount Trey pays is proportional to the number of lures he buys (x), we can write the equation as:

y = kx

where y represents the total amount Trey pays and k is the constant of proportionality.

To find the value of k, we need to know the specific relationship between the quantities. In this case, we know that each lure's price is $1.25, so for every x lures Trey buys, he pays 1.25 * x dollars.

Therefore, the equation becomes:

y = 1.25x

So, the correct answer is:

A) y = 1.25x

review what "proportional" means