Advanced 7th Math - Week 6

Assume that y varies directly with x. Find the constant of variation when y = -4 and x = 2.

• -2

• 2

• 8

• -8

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

Assume that y varies directly with x. Find the constant of variation when y = 7 and x = 4.

(a)  

• 1.75
• 28

• -28

• -1.75

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

Assume that y varies directly with x. Find the constant of variation when y = -5 and x = 12.5

• -0.4

• 0.4

• 62.5

• -62.5

Tags

CCSS.8.EE.B.6

CCSS.8.F.B.4

Write an equation for this relationship. (a)  

• y=4x
• y=1/8x
• y=1/4x
• y=8x

Tags

CCSS.6.EE.C.9

What is the constant of proportionality? (a)  

• 4
• 12
• 3
• 1/3

Tags

CCSS.7.RP.A.2B

Identify the constant of proportionality.

• k = 2

• k = 3

• k = 1.50

• k = 2/3

• none (not proportional)

Tags

CCSS.7.RP.A.2B

Identify the constant of proportionality.

(a)  

• k = 5
• k = 1/5

• k = 1

• k = 2.5

• none (not proportional)

Tags

CCSS.7.RP.A.2B

Determine the constant of proportionality for the table. Express your answer as y = kx

• 15k

• x = 15y

• y = 0.06x

• y = 15x

Tags

CCSS.7.RP.A.2B

What is the slope?

• -21
• -17
• 1/4
• 4

Tags

CCSS.8.EE.B.5

Which of the following best represents the rate of change of the table?

• 2

• 1/2

• 1

• 1.5

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6