constant of proportionality

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

• y

• x

• 14

• 1/14

Find the unit rate of 624 calories in 3 servings.

• 1,872 calories per serving

• 208 calories per serving

• 624 calories per serving

• 621 calories per serving

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 1/2x

Find the unit rate:  $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

• $1.00 per pound

• $3.60 per pound

• $1.20 per pound

• $1.10 per pound

Is this graph proportional?

• Yes

• No

Write an equation for this relationship.

• y = 18x

• y = 18.50x

• y = 22.50x

• y = 22x

What does k represent in the equation y = kx?

• total

• constant of proportionality

• frequency

• proportion

Is this table proportional?

• Yes

• No

One of these tables represents a proportional relationship.
 
 A                        B
x   y                   x   y
5   8                   4   6
6   10                12  18
7    11               16   24
Table _____ represents a proportional relationship. The equation is ____ =  ___ ___

• Table A, y = 1.6x

• Table A, y = 0.625x

• Table B, y = 1.5x

• Table B, y = 2/3x

A box of cereal cost $3.59 for 30 oz. How much is the unit rate per ounce? Round to the nearest cent.

• 11 cents

• 12 cents

• 13 cents

• 10 cents