The shape of a parabola resembles the letter U and can face either up, down, left, or right. The following figures are examples of parabolas.



Figure A 
Figure B 
Figure C 



Figure D 
Figure E 
Figure F 
The lowest point on a graph is called the Minimum while
the highest point on a graph is called the Maximum. The minimum point for
the graph in Figure A is (0,0). The maximum point for the graph in Figure B is
(0, 3).
Some graphs do not have minimums or maximums. Graphs in Figures
A, C and E do not have maximum points. The graph in Figure B does not have a
minimum point. Graphs in Figures D and F have neither a maximum nor a
mimimum.
