Exploring Direct Variation: From Table to Equation

What is the constant of proportionality in the table where X is 2, 4, 6, 8 and Y is 6, 12, 18, 24?

• 6

• 2

• 3

• 4

Tags

CCSS.7.RP.A.2B

If the constant of proportionality is 3, what is the direct variation equation?

• y = 3x

• y = x / 3

• y = x + 3

• y = x - 3

In the table where X is 3, 6, 9, 12 and Y is 6, 12, 18, 24, what is the constant of proportionality?

• 3

• 1

• 4

• 2

Tags

CCSS.7.RP.A.2B

How can you find the constant of proportionality by using the values of Y and X?

• Subtract Y from X

• Multiply Y by X

• Add Y to X

• Divide Y by X

Tags

CCSS.7.RP.A.2B

What is the constant of proportionality if Y is 1 and X is 5?

• 5

• 1

• 5/1

• 1/5

Tags

CCSS.7.RP.A.2B

What is the direct variation equation if the constant is 1/5?

• y = x + 1/5

• y = 1/5x

• y = x/5

• y = 5x

How do you convert a whole number constant to a fraction?

• Divide by 2

• Put it over 1

• Add 1

• Multiply by 2

Tags

CCSS.3.NF.A.3C

If the constant is 8, what are the Y and X values in the table?

• Y = 1, X = 1

• Y = 1, X = 8

• Y = 8, X = 1

• Y = 8, X = 8

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the equivalent fraction of 8/1 when X is 2?

• 16/2

• 16/1

• 8/2

• 8/4

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

If the constant is 1/4, what is the equivalent fraction when X is 8?

• 4/8

• 1/8

• 3/8

• 2/8

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B