Question 1206144:
can you please help me understand these graphs please?
 
Found 3 solutions by ikleyn, MathLover1, josgarithmetic:
Answer by ikleyn(52775)   (Show Source):
Answer by MathLover1(20849)  (Show Source):
You can put this solution on YOUR website! see what are domain and range:
first graph:
line goes from the point ( , )to infinity on left side, but on right side goes to the point ( , )
bot points are included
so, domain will be all  from  to
interval notation:
( ,]
range
The range is the set of outputs (values of  ) for which a function is defined.
the graph continues from
( , ] U [,]
second graph
domain: (,)
range: [,)
third graph
graph is shifted units to the right, so 
use point: (,)
your equation is:
Answer by josgarithmetic(39616)  (Show Source):
You can put this solution on YOUR website! Helping only on the first graph.
"V" shaped, minumum point at (1,3) and terminating at point (2,4).
DOMAIN: Real Numbers less than or equal to 2.
RANGE: The Real Numbers greater than or equal to 3.
You decide how to put those into interval notation; you decide if for answers
you need more refinement.
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