8th Grade Math EOY Review1

Lines a and b are parallel.

Which term best describes angle 1 and angle 3?

• supplementary angles

• corresponding angles

• complementary angles

• interior angles

A right triangle is shown.

What is the missing length? Round the answer to the nearest hundredth.

• 9.25 km

• 17.45 km

• 24.17 km

• 32.91 km

A pile of gravel is in the shape of a cone with a base diameter of 10 feet and a height of 4 feet.

If 1 cubic foot of gravel weighs 30 pounds, how much does the pile of gravel weigh? Round the answer to the nearest pound.

• 3,142 pounds

• 9,425 pounds

• 12,566 pounds

• 15,708 pounds

McKensie has a cylindrical swimming pool with a radius of 8 feet. The water in the pool is 3 feet deep. If McKensie drains the water from the pool at a constant rate of 12 cubic feet per minute, how long will it take to completely empty the swimming pool? Round your answer to the nearest minute.

• 16 minutes

• 50 minutes

• 288 minutes

• 603 minutes

Two points are shown on a coordinate plane.

What is the distance between Point K and Point J?

• 11

• 13

• 15

• 17

Luke took ten spelling quizzes during the school year. Luke recorded his score and the number of minutes he studied for each quiz. This information is shown in the scatter plot below. Based on the scatter plot, which statement about the time Luke spent studying would likely be true?

• There is no association between the time Luke spent studying and his quiz score.

• There is a strong negative association between the time Luke spent studying and his quiz.

• There is a linear association between the time Luke spent studying and his quiz score.

• There is a strong positive association between the time Luke spent studying and his quiz score.

In order to investigate the pattern of association between baseball experience and hitting homeruns, Kyle recorded the homerun totals and years of experience of 17 of his favorite baseball players last year. The scatter plot below shows the data he collected. Which two of the following statements best describe the scatter plot shown above?

• The scatter plot shows a nonlinear association.

• The scatter plot shows a positive association.

• The scatter plot shows no outliers. B)

• The scatter plot shows more than one outlier.

• The scatter plot shows a negative association.

Triangles ABC and A'B'C' are shown in the coordinate plane.

Which statement describes a sequence of transformations that can be used to verify that triangle A'B'C' is similar to triangle ABC?

• Reflect triangle ABC across the x-axis, followed by a dilation with a scale factor of 2 about the origin.

• Reflect triangle ABC across the y-axis, followed by a dilation with a scale factor of 1/2 about the origin.

• Reflect triangle ABC across the x-axis, followed by a dilation with a scale factor of 1/2 about the origin.

• Reflect triangle ABC across the y-axis, followed by a dilation with a scale factor of 2 about the origin.

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

A triangle is formed with side lengths of 24 centimeters, 26 centimeters, and 10 centimeters. Is the triangle a right triangle?

• The triangle is a right triangle because 24² + 10² = 26² .

• The triangle is a right triangle because 2(24) + 2(26) = 2(10).

• The triangle is not a right triangle because 10² + 26² = 24².

• The triangle is not a right triangle because 24² - 26² = 10² .

Samantha surveyed students about implementing a dress code at her school. The results of the survey are shown in the frequency table. What percent of sixth graders are against implementing a dress code?

• 30%

• 40%

• 50%

• 60%