Explanation

In the term x², the coefficient is the number multiplying the variable.

Since nothing is written explicitly, the coefficient is understood to be 1.

Explanation

The transitive property states that if a = b and b = c, then a = c.

Explanation

In a class interval (e.g., 10–20), the greatest value is called the upper class limit.

The lower class limit is the smallest value (e.g., 10), and the upper class limit is the largest value (e.g., 20).

Explanation

A scalar matrix is a diagonal matrix where all diagonal elements are equal (here, 2), and non-diagonal elements are zero.

Explanation

In the ratio a : b, a is called the antecedent (the first term), and b is called the consequent (the second term).

The antecedent represents the part of the ratio that comes before the colon.