EMC 4 CFA "Proportions" Reassess

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

• 15k

• x = 15y

• y = 0.06x

• y = 15x

Tags

CCSS.7.RP.A.2B

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

• y = 33x

• y = 0.003x

• x = 33y

• 33k

Tags

CCSS.7.RP.A.2B

The graph shows the water level as a bathtub fills.  Select the correct choice that describes this graph.

• The graph is proportional because the y to x ratio is constant (the same).
• The graph is non-proportional because it does not pass through the origin (0,0).
• The graph is proportional because it is linear (a straight line).
• The graph is non-proportional because it is linear (a straight line).

Tags

CCSS.7.RP.A.2D

Simplify the given rate into a unit rate 

 $\frac{84\ stic\ker s\ }{4\ sheets}$  

•  $\frac{21\ stic\ker s}{1\ sheet}$  

•  $\frac{42\ stic\ker s}{2\ sheets}$  

•  $\frac{16\ stic\ker s}{1\ sheet}$  

•  $\frac{24\ stic\ker s}{1\ sheet}$  

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Cora loves to wear socks with crazy patterns. She finds a great deal for these kinds of socks at her favorite store, Rock Those Socks. Cora can buy 5 pairs of socks for $5. She can buy 7pairs for $7.

In this relationship, x represents the number of pairs of socks that Cora buys, and y represents the total cost (in dollars).

Is this a proportional relationship?

• Yes. The constant of proportionality is 5.

• No. It does not go through the origin.

• Yes. The constant of proportionality is 1.

• No. The graph is not a straight line.

Tags

CCSS.8.EE.B.5