Exploring Ratio and Proportion Concepts

Which of the following is NOT a way to represent a ratio?

• As a fraction

• Using a colon

• Using a plus sign

• Using the word 'to'

What does the slope of a line represent in terms of ratios?

• The ratio of the rise to the run between any two points on the line

• The ratio of the run to the rise between any two points on the line

• The ratio of the distance to the time

• The ratio of the angle to the length

Which of the following is an example of a proportion?

• 1/2 = 2/3

• 2/3 = 3/2

• 4/5 = 5/4

• 1/3 = 2/6

In a proportion, what are the first and fourth terms called?

• Extremes

• Means

• Medians

• Averages

What does the means-extremes product theorem state?

• The ratio of the means is equal to the ratio of the extremes

• The difference between the means is equal to the difference between the extremes

• The product of the means is equal to the product of the extremes

• The sum of the means is equal to the sum of the extremes

What is another term for the geometric mean?

• Arithmetic mean

• Harmonic mean

• Mean proportional

• Median

If 6 is the geometric mean between 12 and a number, what is that number?

• 9

• 18

• 36

• 24

How do you find the arithmetic mean of two numbers?

• Divide the larger number by the smaller number

• Subtract the smaller number from the larger number

• Add the two numbers and divide by two

• Multiply the two numbers and take the square root

What is the arithmetic mean of 10 and 14?

• 12

• 24

• 14

• 10

Which of the following best describes the arithmetic mean?

• The product of two numbers

• The average of two numbers

• The difference between two numbers

• The ratio of two numbers