Chapter 8.1/8.2

Question 1

Proportion

Answer 1

Equation stating that two ratios are equal

Question 2

Means

Answer 2

In the proportion a/b=c/d, b and c are the means

Question 3

Extremes

Answer 3

In the proportion a/b=c/d, a and d are the extremes

Question 4

Properties of proportions

Answer 4

1) cross-product property
2) reciprocal property
3) interchange means property
4) a/b=c/d iff a+b/b=c+d/d

Question 5

Ratio

Answer 5

Comparison of two numbers using division