zero product property:

complex numbe

a number in the form a + bi where a and b are real numbers and i equals the square root of -1

imaginary number

a number in the form bi where b is a real number and i equals the square root of -1

the U-shaped graph of a quadratic function; the set of points that is equidistant from a given point and a given line

a trinomial that can be written as the product of two identical binomials

zero of a function

a value of the independent variable in a function that results in a value of zero for the dependent variable

transformation

an operation on a figure that may change its orientation, shape, or location in a plane

convert

change

approximate

close to the actual, but not completely accurate or exact

parabola

the U-shaped graph of a quadratic function; the set of points that is equidistant from a given point and a given line

complex conjugate

the complex conjugate of a number a + bi is the number a - bi

square root property of equality

the property stating that if x² = c, then x equals the positive square root of c or the negative square root of c

factor

to break up a polynomial into a product of polynomials that can be multiplied to get the original polynomial

isolate

to separate from others

zero product property:

when the product of two or more factors is zero, one of these factors must equal zero