Term

Definition
a function that can be written in the form f(x)=ax^2+bx+c, where a, b, and c are real numbers and a does not equal 0, or in the form f(x)=a(xh)^2+k, where a, h, and k are real numbers and a does not equal 0 


Term

Definition
the shape of the graph of a quadratic function. Also, the set of points equidistant from a point F, called the focus, and a line d, called the directrix 


Term

Definition
the highest or lowest point in a parabola 


Term

Definition
the line that divides the parabola into two symmetrical halves 


Term

Definition
the yvalue of the vertex when a parabola opens upward (concave up) 


Term

Definition
the yvalue of the vertex when a parabola opens downward (concave down) 

