1. Angle measure
Degrees are a unit of angle measure. A full circle is divided into 360 degrees. For example, a right angle is 90 degrees.
A degree has the symbol ° and so ninety degrees would written 90°. Another unit of angle measure is the
2. Degree of a term
The degree of a term is the exponent of the term. For example the term
has a degree of 2.
If the term has more than one variable multiplied together it is the sum of the exponents. For example
has a degree of 6 (4+2).
If there is no exponent, the degree is 1, since
If the term is just a constant its degree is zero. Recall that
and so any constant (say 9) could be re-written:
3. Degree of a polynomial
The degree of a polynomial is the highest degree of any term in the polynomial.
For example the polynomial
has a degree of 5 because the x5 term has the highest degree. See ("degree of a term" above).
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