STAAR Review 4/6/18

The circumferences of several circles are shown.

Which shows the circumferences ordered from longest to shortest?

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A triangle with vertices E(-9, 6), F(-6, -5), and G(4, 0) is dilated to form a triangle with vertices

E’(-3, 2), F’(-2, -1 2/3), and G’(1 1/3, 0).

Which best explains the effect of the scale factor applied to triangle EFG to form triangle E’F’G’?

• (x, y) → (-3x, -3y)

• (x, y) → ( 2/3x, 2/3y)

• (x, y) → (3x, 3y)

• (x, y) → ( 1/3x, 1/3y)

Which graph can be used to model a unit rate of $3.50 per gallon?

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The rotor in a lawn mower engine spins at a constant rate under normal operating conditions.

How many revolutions does the rotor spin per minute?

• 875 revolutions per minute

• 3,500 revolutions per minute

• 1,750 revolutions per minute

• 750 revolutions per minute

A relation between x- and y-values is shown.

Does the relation represent a function?

• No, each x-value has more than one y-value.

• Yes, each x-value has exactly one y-value.

Mrs. Fuller plants a 4-inch tomato plant in her garden. The tomato plant grows at a rate of 2 inches each week. Which equation can be used to determine h, the height of the tomato plant in inches after w weeks?

• h = 2w + 4

• h = 1/2w + 4

• h = 4w + 2

• h = 2w + 1/4

A plastic candy container and its dimensions are shown in the diagram.

Which best shows the volume of the candy container, including the top?

• 654.5 cm³

• 808.5 cm³

• 577.5 cm³

• 2,618 cm³

The student athletic boosters create noise makers out of cylindrical canisters as shown.

Which expression can be used to find the lateral surface area of the noise maker that will be decorated?

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Elijah uses light-weight wooden rods to build the frame for a kite. The design of his kite is shown.

What is the length of one of the wooden rods on the diagonal of the kite?

• 2.5 ft

• 3.5 ft

• 5 ft

• 7 ft

Which best represents the solution to the equation described?

Two and twenty-five hundredths less than the quotient of x and two is equal to the sum of three and six tenths and quadruple x.

• x = -1.3

• x = -0.3

• x = -1.6

• x = -0.8