Tutorial - How to determine if an equation has y varying directly with x, y = kx; y/2 = x

The video tutorial explains direct variation, where Y varies directly with X. It demonstrates how to determine if an equation represents direct variation and how to identify the constant K. The tutorial provides an example where Y equals 2 times X, showing that the constant K is 2. It also explains how to rewrite the equation in an alternative form by dividing by X on both sides.

What does it mean if y/2 equals X in terms of variation?

• It is an example of no variation.

• It is an example of joint variation.

• It is an example of direct variation.

• It is an example of inverse variation.

How can you solve for Y if Y is divided by 2?

• Add 2 to Y.

• Subtract 2 from Y.

• Multiply Y by 2.

• Divide Y by 2.

What is the constant K when Y equals 2 times X?

• K is 2.

• K is 0.

• K is 1.

• K is 3.

How can the equation be rewritten by dividing by X on both sides?

• y/X = 0

• y/X = 3

• y/X = 1

• y/X = 2

What is the result of dividing Y by X in the context of direct variation?

• The result is 1.

• The result is 0.

• The result is 3.

• The result is 2.