STAAR Mini-Quiz #2

Julie started with 20 pieces of gum and gave away x pieces. Cole started with 35 pieces of gum and gave away twice as many pieces as Julie did.

How many pieces of gum did Julie give away if they had the same number of pieces of gum left?

• 18

• 5

• 15

• 8

Natasha walked fro the library to the grocery store and then to her house. The diagram shows the top view of the locations of these three places and their distances from each other. Which measurement is closest to the shortest distance in miles from Natasha's house to the library?

• 2.6 mi

• 1.9 mi

• 1.4 mi

• 2.3 mi

A fishbowl shaped like a sphere is filled with water. The fishbowl has a diameter of 16 inches. Which measurement is closest to the volume of water in the fishbowl in cubic inches?

• 2,144.66 in³

• 17,157.28 in³

• 5,461.67 in³

• 6,433.98 in³

An architect uses a cylindrical container to protect her blueprints. The dimensions of the cylinder are shown in the diagram. Which measurement is closest to the total surface area of the container in square inches?

• 424.12 in²

• 791.68 in²

• 339.29 in²

• 282.74 in²

Quadrilateral ABCD was dilated with the origin as the center of dilation to create quadrilateral A'B'C'D'. Which rule best represents the dilation that was applied to quadrilateral ABCD to create quadrilateral A'B'C'D'?

• (x,y)→(0.4x, 0.4y)

• (x,y) →(x + 3, y+1.5)

• (x,y) →(2.5x, 2.5y)

• (x,y) →(x - 1.5, y + 3)

Circle I was dilated with the origin as the center of dilation to create Circle II. Which rule best represents the dilation applied to Circle I to create Circle II?

• (x,y)→(2/9x, 2/9y)

• (x,y)→(9/2x, 9/2y)

• (x,y)→(x + 7, y + 7)

• (x,y)→(x - 7, x - 7)

Triangle ABC was translated 2 units to the right and 5 units down. Which rule describes the translation that was applied to triangle ABC to create triangle A'B'C'?

• (x,y)→(x - 5, y + 2)

• (x,y)→(x + 2, y - 5)

• (x,y)→(2x, -5y)

• (x,y)→(-5x, 2y)

Pentagon VWXYZ is shown on the coordinate grid. A student reflected pentagon VWXYZ across the x-axis to create pentagon V'W'X'Y'Z'. Which rule describes this transformation?

• (x, y) → (x, -y)

• (x, y) → (x, y+8)

• (x, y) → (-y, x)

• (x, y) → (-x, y)