Algebra 2 - Learn how to determine if an equation is an example of direct variation or not 3x‐0=y

The video tutorial explains how to identify and rewrite equations to determine if they represent direct variation. It introduces the direct variation formula Y = KX and demonstrates how to manipulate an equation to fit this form, using an example where K equals 3. The tutorial concludes by affirming the simplicity of the process.

What is the standard form of a direct variation equation?

• Y = MX + B

• Y = K/X

• Y = KX

• Y = AX^2 + BX + C

In the context of direct variation, what does the constant K represent?

• The x-intercept

• The slope of the line

• The constant of variation

• The y-intercept

How can you rewrite the equation 3X = Y to show direct variation?

• Y = 3X

• Y = X/3

• Y = 3 + X

• Y = X - 3

If an equation is in the form Y = KX, what can be said about the relationship between Y and X?

• Y is inversely proportional to X

• Y is directly proportional to X

• Y is unrelated to X

• Y is exponentially related to X

In the example given, what is the value of K when the equation is rewritten as Y = 3X?

• 3

• 1

• 0

• X