Constant of Proportionality

What makes a graph proportional?

• Straight line

• The line goes through the origin

• Curvy line

• Straight line and the line goes through the origin

Tags

CCSS.7.RP.A.2

A proportional relationship can be written as an equation in the form ____ = _____  _____

• y = k+x
• y = k-x
• y = kx
• y = k/x

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

k represents

• the constant of proportionality

• the constant of scientific notation

• the constant of inequalities

• the constant of variables

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none (not proportional)

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Where do you find the constant of proportionality for an equation?

• The number in front of y

• The number in front of x

• The number added to x

• The number subtracted from x

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

The point (0, 0) is called the origin.

• True
• False

Tags

CCSS.HSG.CO.A.1

Determine the constant of proportionality for the table. Express your answer as y = kx

• y = 1/2x

• x = 1/2y

• y = 2x

• k = x

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Identify the constant of proportionality.

• k = 5

• k = 1/5

• k = 1

• k = 2.5

• none (not proportional)

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

What is the constant of proportionality for the following graph?

• 80
• 20
• 40
• 160

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

What is the constant of proportionality ? (Unit rate)

• 2 tiles per minute

• 3 tiles per minute

• 4 tiles per minute

• None of the above

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2