Review Scales, Slope and Proportional Relationships

Which graph is proportional with a negative slope?

• a

• b

• c

• d

In y=kx, what is k? and what is the output (dependent variable)?

• k is the slope and the x is the output (dependent variable)

• k is the constant of proportionality and x is the output (dependent variable)

• k is the constant of proportionality and y is the output (dependent variable)

• k is the output dependent variable and x is the slope.

What type of slope?

• negative

• steep

• undefined

• zero slope

Find the slope

• -2/3

• 3/2

• -3/2

• 2/3

Find the slope

• 7/3

• 3/7

• -3/7

• -7/3

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

Find the slope:

• 3/4

• 4/3

• -3/4

• -4/3

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional

Which graph is non-proportional?

• A

• B

• C

• D