Direct Variations A.2D

Which is not an equation of direct variation

• y=4x

• y=.75x

• y=-.75x-3

• y=24x

Tags

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

what is the equation of Direct Variation

• y=4x

• y=.4x

• y=8x

• y=.6

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.2

If x varies directly as y, and x=9 when y=6 find x when y=15

• x=22.5

• x=23

• x=.044

• x=45

Tags

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3

Heather’s weekly pay is directly proportional to the number of hours she works at the record store. Her pay is $174 for 24 hours of work. Find the amount of pay for 40 hours of work.

• 280

• 270

• 300

• 290

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.1

CCSS.8.F.B.4

CCSS.8.SP.A.3

6. A dishwasher uses 65 gallons of water to wash 5 loads of dishes. How many gallons of water would be used to wash 12 loads?

• 150

• 146

• 156

• 166

Tags

CCSS.HSF-LE.A.1B

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. Find the amount of pay for 31 hours of work.

• 7.25

• 190.65

• 5.04

• 145.00

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.F.B.5

CCSS.8.SP.A.3

The cost of a pizza varies directly as the square of its radius. If a pizza with a 6 inch radius costs $8.00, how much should a pizza with an 11 inch radius cost?

• 14.67

• 8.75

• 8.25

• 14.66

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

If y varies directly as x, and x = 9 when y = 15, find y when x = 33.

• 56

• 54

• 55

• 53

Tags

CCSS.7.RP.A.2

Is this an example of direct Variation?

• yes

• no

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

Is this an example of direct variation

• no

• yes

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3