8M STAAR Review #3

Which set of ordered pairs represents y as a function of x?

• (-9,2), (0,6), (1,-2), (-3,6)
• (-1,0), (4,3), (-7,-3), (-1,-8)
• (3,2), (-4,-2), (3,1), (-4,1)
• (5,4), (2,3), (1,1), (2,4)

Sadie used a container shaped like a cylinder to catch rainwater. The diameter is 12cm and the height is 9cm. Which measurement is closest to the volume of the container in cubic centimeters?  V=BH 

• 1527
• 4072
• 1018
• 3054

Blind company A charges $25.00 to install blinds for one room and $5.00 for each additional window. Blind company B charges $30.00 to install blinds in one room and $4.00 for each additional window. Write an equation to determine how many blinds would need to be installed for the price to be equal.

• 25 + 5x = 30 + 4x
• 25 - 5x = 30 - 4x
• 30 - 25 = 4x + 5x
• 25x + 5 = 30x + 4

Solve the equation:
7x - 4 = 3 + 8x

• x = 7
• x = -7
• x = 2/7
• x = 11

Emilio borrows $1200 from a bank with 8% simple interest per year.  How much will he have to pay back total in 2 years?

• $150
• $192
• $1350
• $1392

During a drought, the level of a lake drops 2 feet in 5 weeks. Which graph has a slope that best represents the number of feet per week the lake level drops during a drought?

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Find the height of the tree.

• 8 ft

• 12 ft

• 13 ft

• 15 ft

Which equation best represents the relationship between x and y in the table shown?

• y= 5x+5
• y=1/5x+5
• y=15x+5
• y=10x+5

A table tennis ball has a diameter of 40 mm. What is the approximate volume of the table tennis ball in cubic millimeters?

• 1,676 mm³
• 18,850 mm³
• 33,510.3 mm³
• 268,083 mm³