Math 7 Lesson Check 4.3

Determine the direct variation.

• y=9x
• y=10x
• y=90x
• y=10/9

Tags

CCSS.7.RP.A.2B

In order for a graph to represent a direct variation the line must be straight and go through the _________.

• y-axis
• origin
• x-axis
• 1st quadrant

Tags

CCSS.8.EE.B.5

Determine the direct variation.

• y=25
• y=10
• y=3987
• y=5x

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14

Tags

CCSS.7.RP.A.2B

What is the constant of proportionality for this table?

• 1/9
• 9
• 8

Tags

CCSS.7.RP.A.2B

Write an equation for this situation.

• y=9.75x
• y=19x
• y=19.25x
• y=9.5x

Tags

CCSS.HSF-LE.A.1B

Which graph is proportional?

• A
• B
• None of the graphs
• All of the graphs are proportional

Tags

CCSS.7.RP.A.2D

Which statement below accurately represents the graph?

• $100 is earned for each hour worked
• $200 earned for every 2 hours worked
  is the unit rate
• $500 is earned for every 8 hours worked
• $300 is earned after working 4 hours

Tags

CCSS.8.EE.B.5

Which best describes the graph represented in this table?

•  proportional
• non-proportional

Tags

CCSS.7.RP.A.2A

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

• unit rate; k

• ratio rate

• proportion answer

• rational number