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turning points

points where the graph changes direction

end behavior

directions of the graph to the far left and to the far right

x-intercept

root

root

zero of a function

polynomial

one or more monomials

perfect square trinomial

trinomial that is the square of a binomial

radicand

number under a radical sign

index

indicates degree of the root

complex numbers

real and imaginary numbers

x-intercept

point where a graph crosses the x-axis

y-intercept

point where a graph crosses the y-axis

parabola

graph of quadratic function

quadratic function

second-degree polynomial

range

set of all y-values of a function

transformation

change made to a function

translation

shift of the parent function

axis of symmetry

line that divides a graph into two identical parts

factoring

rewriting an expression as the product of its factors

like radicals

radicals with the same index and radicand

i

imaginary unit

domain

set of all x-values of a function

degree of polynomial

greatest degree among its terms

cubic

3rd degree polynomial

quartic

4th degree polynomial

quintic

5th degree polynomial

binomial

polynomial with 2 terms

trinomial

polynomial with 3 terms

monomial

1 term