7th grade review day 1 (Proportions and Rationals)

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 3

• x = 3y

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

• y

• x

• 14

• y=14x

Janet used 155 beads to create 5 necklaces. What is the constant of proportionality of beads per necklace

• 31

• 775

• 160

• 150

Ben earns extra money as a painter. He earns $41 for 4 hours and $71.75 for 7 hours. What is the constant of proportionality of dollars per hour?

• $37

• $64.75

• $10.25

• $18.50

What is the constant of proportionality?

• 1

• 2

• 3

• 4

 Is this table proportional or non-proportional?

• Non-Proportional because there is no COP

• Proportional because the COP is 4

• Non-Proportional because is does not go through the origin

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.

Is this table proportional?

• yes because it will go through the origin and is a straight line

• no because the C.O.P. for each line is different

• yes because it increases by 1

• no because there is no origin

What is the constant of proportionality of money per hour?

• $3

• $4

• $2

• $9

What is the equation for the graph?

• y=46x
• x=46y
• y=92x
• x=92y