Expression 4: left brace, "x" less than or equal to 0 : "x" plus 4 , "x" greater than 0 : left parenthesis, "x" minus 3 , right parenthesis squared , right brace Has graph. To audio trace, press ALT+T.x≤0:x+4,x>0:x−32
4
Infinite discontinuity
5
Expression 6: negative StartFraction, 1 Over "x" minus 6 , EndFraction plus 3 Has graph. To audio trace, press ALT+T.−1x−6+3