3.4-3.5 - Direct Variation & Arithmetic Sequences

What does the Direct Variation Equation look like?

• y= kx
• y = mx + b
• y = b
• y = x

Tags

CCSS.8.EE.B.6

What is the constant of proportionality?

• 8
• 16
• 24
• 2

Tags

CCSS.7.RP.A.2B

In a direct variation, y = 39 when x = 3. 
Find the value of y when x = 2.

• 26
• 3
• 58.5
• 2

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

CCSS.HSA.CED.A.1

CCSS.HSF.LE.A.1

CCSS.HSA.REI.B.3

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

• (0, 0)
• (1, 0)
• (0, 1)
• (1, 1)

Tags

CCSS.8.EE.B.6

The amount of money earned on a job is directly proportional to the number of hours worked.  If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?

• $2
• $308
• $1.57
• $265

Tags

CCSS.6.RP.A.3C

Is this a direct variation?

• yes
• no

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

 Y varies directly with x, and y is 84 when x is 16. Which equation represents this situation?

• y=1344x
• y=100x
• y=5.25x
• y=4/21x

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

Which of the given graphs is a direct variation?

• A
• B
• C
• D

Tags

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.2

CCSS.HSA.CED.A.2

CCSS.HSF.LE.A.1

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.C.7

A person’s weekly pay is directly proportional to the number of hours worked. Shawn’s pay is $123.00 for 20 hours of work. What is the constant of variation?

• k = 123
• k = 20
• k = 6.15
• k = 0.16

Tags

CCSS.HSF-LE.A.1B

At top speed, a rabbit can cover 7 miles in 12 minutes. What is the constant of variation?

• k = 7
• k = 12
• k = 12/7
• k = 7/12

Tags

CCSS.HSF-LE.A.1B