MATH 8 REVIEW QUESTIONS 3

• 4

• 8

• 16

• 21

• 46°

• 90°

• 136°

• 226°

The table represents a company’s digital music revenue for six years. Amy correctly made a scatter plot of the data in the table. Which statement is true based on her scatter plot?

• There is at least one outlier.

• There is a nonlinear association.

• There is a positive linear association.

• There is a negative linear association.

Which ordered pairs should be removed to make the graph a function?

• (−2, 4) and (11, −7)

• (6, 5) and (6, 7)

• (3, 3) and (6, 3)

• (1, 1) and (6, 7)

A nanometer can be expressed as 1 × 10⁻⁹ meters, and a millimeter can be expressed as 1 × 10⁻³ meters. How many times larger is a millimeter than a nanometer?

• 10,000

• 100,000

• 1,000,000

• 10,000,000

Company A sells 500 pencils for $62.50. The equation y = 0.25x represents the cost of buying x number of pencils from Company B. Which statement describes the relationship between the prices per pencil for Company A and Company B?

• The price per pencil at Company B is one-third the price per pencil at Company A.

• The price per pencil at Company B is one-half the price per pencil at Company A.

• The price per pencil at Company B is twice the price per pencil at Company A.

• The price per pencil at Company B is triple the price per pencil at Company A.

The graph shows the relationship between the value of a car, in dollars, after t years. Which statements are true about the relationship? Select two answer choices.

• After 10 years, the car is worth $0.

• The value of the car increases by $1,200 each year.

• The value of the car decreases by $1,200 each year.

• The value of the car when it was brand-new was $16,000.

• The relationship can be modeled by the linear function V = 1,200t + 16,000.

A list of numbers is shown. 7.6, √50, √65, √78, 8.2. To plot the numbers on a number line, which list is ordered from least to greatest?

• √50, √65, √78, 7.6, 8.2

• √78, 8.2, √65, 7.6, √50

• 7.6, 8.2, √50, √65, √78

• √50, 7.6, √65, 8.2, √78

What is the relative frequency, rounded to the nearest tenth of a percent, of students who purchased popcorn?

• 27.6%

• 35.9%

• 42.9%

• 51.3%

The graph shows the locations of an eagle’s nest, a tree, and a pond. On the coordinate grid, each unit represents a mile. Which distance best represents the shortest distance from the pond to the tree? Round to the nearest tenth of a mile.

• 13.7 miles

• 15.2 miles

• 16.2 miles

• 21.0 miles