Math 9.1-9.3

square root of a number
b(squared)= a....b= square root of a
perfect square
# whose square root is an integer or a fraction w/ two integers
irrational number
# not a perfect square root....endless decimal
falling object model
h= -16t(squared) + s
quadratic equation
y=ax(squared) +bx +c (leading variable=a)
steps for graphing quadratic equation
1. a value opens up or down? 2.find x co of vertex 3.table of values