Proportionality, Graphs, and Equations

Is the given table a direct variation? If so, what is the constant?

• Yes; 1/4

• Yes; 4

• Yes; 2

• No

What ordered pair does a direct variation always go through when graphed?

• (0, 0)

• (1, 0)

• (0, 1)

• (1, 1)

A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?

• 90 ft

• 7.5 ft 

• 4.5 ft

• 45 in

In the equation, y = 5x + 8. the +8 is called the

• COP

• Y-intercept

• unit rate

• scale factor

What type of slope?

• negative

• positive

• undefined

• zero

What is the constant of proportionality?

• $3

• $4

• $2

• $9

Tags

CCSS.MATH.CONTENT.7.RP.A.2

Solve the proportion.

• q=2

• q=9

• q=4.5

• q=6

Tags

CCSS.MATH.CONTENT.7.RP.A.2

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none (not proportional)

Tags

CCSS.MATH.CONTENT.7.RP.A.2

What is the unit rate for the rain fall?

• 2 cm per hour

• 1 cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Tags

CCSS.MATH.CONTENT.7.RP.A.2

Solve the proportion.

• k=90

• k=3.3

• k=60

• k=5

Tags

CCSS.MATH.CONTENT.7.RP.A.2