Which equation represents a direct variation

y = 1/2x represents a direct variation because it represents the direct variation formula: y = kx. In this case, the "k" is 1/2.

1/2x

Step-by-step explanation:

For instance, if y shifts straightforwardly as x, and y = 6 when x = 2, the steady of variety is k = 3. Therefore, the condition depicting this immediate variety is y = 3x. ... As recently expressed, k is steady for each point; i.e., the proportion between the y-arrange of a point and the x-organize of a point is consistent.

answer: 5a, -3a

step-by-step explanation:

that is a very good question