Question

The value of y varies directly with x, and y = 4.5 when x = 0.5.

Find y when x = 10.


Tell whether the equation represents a direct variation. If so, identify the constant of variation.

y + 3x = 0



Tell whether the equation represents a direct variation. If so, identify the constant of variation.

3y = 9x



Does the equation represent a direct variation? If so, identify the constant of variation.

-4x + 3y = 0



Does the equation represent a direct variation? If so identify the constant of variation.

y = 5x
Can anyone help me really confused?:(