- the line that divides a figure into two parts that are mirror images
- axis of symmetry
- a polynomial of two terms
- binomial
- the numerical factor in a term
- coefficient
- number pairs of the form a + bi and a - bi
- complex conjugates
- the real numbers AND the imaginary numbers
- complex number
- conjugate number pairs where the sign of the radicals or the imaginary numbers are opposites
- conjugate number
- a quantity whose value does not change
- constant
- a function of the form y = a where a is a real number
- constant function
- a term with no variables
- constant term
- in a square matrix it is a real number describing the matrix determined by ad - bc in a 2x2 matrix
- determinant
- the value of the expression b^2 - 4ac for a quadratic equation
- discriminant
- the set of all inputs in a relation (usually x)
- domain
- determining the arithmetic value of an expression by substituting number values for the variables
- evaluate
- any number of the form a + bi, where a and be are real numbers, b is not equal to zero, and I is the square root of -1
- imaginary number
- the input values of a function (usually x)
- independent variable

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