Proportional Relationships

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

• y
• x
• 14

Tags

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3

Write an equation for this relationship.

• y=18x
• y=18.50x
• y=22.50x
• y=22x

Is this graph proportional?

• Yes
• No

What is the unit rate in this proportional relationship?

• 60 miles/1 hour
• 120 miles/ 2 hours
• 1 mile/ 1 hour

Write an equation for this relationship.

• y=1/5x
• y=1/2x
• y=2x
• y=5x

Does this graph represent a proportional relationship?  

• No, because it doesn't pass through the origin.
• Yes, because it doesn't pass through the origin.
• Yes, because it intersects the y axis.
• No, because it intersects the x axis.

Tags

CCSS.8.EE.B.6

CCSS.8.EE.B.5

What is a Ratio?

• A comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

What is the rate of change for the following graph?

• 80
• 20
• 40
• 160

Find the rate of change

• 1
• 2
• 11
• Not a constant slope/Non-Linear

Using the graph, find the slope

• 4/3
• 3/4
• -4/3
• -3/4