Suppose y varies directly with x. if y = –4 when x = 8, what is the equation of direct variation? complete the steps to write the equation of direct variation.

The equation of direct variation is .

Step-by-step explanation:

If y varies directly with x, then

           ..... (1)

Where, k is constant of proportionality.

It is given that the value of y is -4 at x=8.

Substitute x=8 and y=-4 in the above equation.

Divide both sides by 8.

The value of k is -1/2.

Substitute in equation (1).

Therefore the equation of direct variation is .

the answer is d. 75%