8th grade math STAAR review for math lab class

• W

• X

• Y

• Z

Tags

CCSS.8.NS.A.2

The cost of 6 pencils at a store is 30 cents. Each pencil has the same cost. Which is the slope that would best represent the cost of each pencil at this store?

• 2 pencils for 10 cents

• 5 pencils for 5 cents

• 1 pencil for 30 cents

• 6 pencils for 10 cents

Tags

CCSS.8.EE.B.5

A water tank currently contains 275 gallons of water. The amount of water in the tank will decrease at a constant rate of 15 gallons per week.

Which function can be used to find t, the total numbers of gallons of water in the tank after w weeks?

Tags

CCSS.HSF-BF.A.1A

Polygon LMNPQR is dilated with the origin as the center of dilation to create polygon L'M'N'P'Q'R'. The point Q is at (6,2) and Q' will be located at (21,7). Which rule best represents the dilation?  

Tags

CCSS.8.G.A.3

Triangle TRW will be dilated by a scale factor of n with the origin as the center of dilation to create triangle T'R'W'. Point R is located at (-3,-5). Which ordered pair best represent the location of point R'?

Tags

CCSS.8.G.A.3

Aquarium I contains 4.6 gallons of water. Louise will begin filling Aquarium I at a rate of 1.2 gallons per minute.

Aquarium II contains 54.6 gallons of water. Isaac will begin draining Aquarium II at a rate of 0.8 gallons per minute.

After how many minutes will both aquariums contain the same amount of water?

• 148

• 125

• 25

• 50

Tags

CCSS.8.EE.C.8C

Which ordered pair represents y as a function of x?

• (-3,0),(0,2)(0,-2)

• (-4,3),(-4,-3),(2,0)

• (-11,6),(-14,4),(-17,34)

• (22,25),(22,27),(16,1)

Tags

CCSS.8.F.A.1

• 0.6

• 1.4

• 1.0

• 0.5

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

A TV on display at Best Buy has a width of 52 inches and a diagonal of 65. What is the height of the TV?

• 39

• 117

• 83

• not here

Tags

CCSS.8.G.B.8