Question

A graph showing the inequalities "greater than or equal to" or "less then or equal to" will use dotted lines
True or false

Answer 1

http://www.purplemath.com/modules/ineqgrph.htm

Answer 2

dotted lines ---> less than / larger than
straight lines---> less than or equal to / larger than or equal to

Answer 3

if there is an equal sign in the problem, it is a straight line. If there is no equal sign, it is a dotted line.