Direct Variation

My Definition

Key Characteristics

The following are true of direct variation:

  • It is used to describe proportional relationships.

  • It can be written in the form, y = kx, k ≠ 0.

  • It can be represented on a graph by a linear function that passes through the origin.

Example

Use the link below to further study examples of direct variation.

Direct Variation Activity

Direct Variation Activity Direct Variation Activity

Non-example

y = 3x - 4

Sloped Line Graph

TEKS: 7(4)(C), 8(5)(E)