Which line is parallel to 4x + 2y = 0?
a. y=2x+3
b. -1/2×+3
c. y=-2x+3
d. y=1/2x+3

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:

-2

7 - 9 = -2

reversed:

-2 + 9 = 7