Which expression is equivalent to 25x – 10y?
A. 5(5x – 2y)
B. 5(20x - 5y)
C. 5(5x – 10y)
D. 5(20x – 10y)
What is it

A. 5(5x-2y)

Step-by-step explanation:

to find the equivalent expression, you can perform the distributive property for each equation. for a, you multiply 5 by each term in the parentheses. you will get 25x-10y. so the answer is a

step-by-step explanation:

a

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: