Exploring Direct and Inverse Variation Concepts

What happens to Y when X increases in a direct variation?

• Y decreases

• Y remains constant

• Y becomes zero

• Y increases

In the formula for direct variation, y = kx, what does 'k' represent?

• Variable Y

• Variable X

• Constant of variation

• None of the above

If y = 10 when x = 5 in a direct variation, what is the value of y when x = 11?

• 5

• 11

• 15

• 22

How do you find the constant of variation if y = 12 when x = 30?

• Divide 12 by 30

• None of the above

• Multiply 12 by 30

• 12 divided by 30 simplified

What is the value of x when y = 3 and the constant of variation is 2/5?

• 7.5

• 3

• 15

• 30

What is the formula for inverse variation?

• y = k - x

• y = kx

• y = k / x

• y = k + x

If y = 15 when x = 12 in an inverse variation, what is y when x = 24?

• 7.5

• 30

• 24

• 12

How do you calculate the constant of variation in inverse variation if y = 6 when x = 7?

• Multiply 6 by 7

• Add 6 and 7

• Divide 6 by 7

• Subtract 7 from 6

What is the value of x when y = 2 and the constant of variation is 42 in an inverse variation?

• 84

• 24

• 42

• 21

In inverse variation, if x increases, what happens to y?

• Y increases

• Y becomes zero

• Y decreases

• Y remains constant