Proportional Relationships Review

Graph the line for the equation

y = 3x

Graph the proportional equation, do not use the origin as one of your points

y = -2x

Graph the following equation

y = 1/2x

Match the following term with an example

• used for ordered pairs

• Constant of Proportionality

• K

• 
• y= kx

• K equals

• y divided by x

• What expression to use to find slope using a graph

• rise / run

• Equation for a proportional relationship

A proportional relationship must have a ​ (a)   line and go through the ​ (b)  

There must be a Constant ​ (c)   ​ (d)   which is represented by the letter ​ (e)  

• Straight
• origin
• of
• Proportionality
• k

Every 4.5 hours a machine packages and produces 450 cartons of Takis. What is the unit rate of this proportional relationship?

Mathematical Equivalence

ON

What is the equation of the following graph?

• y = 2/3x

• y = 3/2x

• y = -2/3x

• y = 5x

Taylor made 140 baskets in 7 hours. How many baskets would Taylor make in 6 hours?​ (a)  

• 120
• 20
• 23
• 14

The equation for a proportional relationship is...

​ (a)   =​ (b)   ​ (c)  

• y
• k
• x
• 8
• b

What equation shows direct variation?

• y = 1/2x + 2

• y = 2x

• y = 2x +2

• y = 8 + 3x