Constant of Proportionality

What makes a graph proportional?

• Linear (straight line), that does NOT go through the origin.

• A straight line (linear) that goes through the origin

Does this graph show a proportional relationship?

• Yes

• No

• Sometimes

Tags

CCSS.7.RP.A.2D

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.2C

k represents

• the constant of proportionality

• the king

• ketchup

• a strikeout

Tags

CCSS.7.RP.A.2B

Which equation helps you solve for k?

• k = x/y

• k = y/x

• k = y + x

• k = 2x

The constant of proportionality in the equation y = ½x is _______. 

• x
• y
• 1/2
• 2

Tags

CCSS.7.RP.A.2B

The constant of proportionality can be found by finding the __________  _____________.

• unit rate
• ratio rate
• proportion answer
• rational number

Tags

CCSS.7.RP.A.2B

What is the constant of proportionality for this table?

• $1/9 per hour

• $9 per hour

• $8 per hour

• $18 per hour

Tags

CCSS.7.RP.A.2B

What is the ordered pair that represents the unit rate?

• (1, 15)

• (15, 1)

• (4, 60)

Tags

CCSS.8.EE.B.5

What is the constant of proportionality for the following graph?

• 80
• 20
• 40
• 160

Tags

CCSS.7.RP.A.2B