Expression 2: "f" left parenthesis, "x" , right parenthesis equals negative 0.4 8 "x" cubed plus 1.4 7 "x" left brace, 1 greater than or equal to "x" greater than or equal to negative 1 , right brace Has graph. To audio trace, press ALT+T.fx=−0.48x3+1.47x1≥x≥−1
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Expression 3: 0.0 3 "x" minus 0.9 6 left brace, "x" less than negative 1 , right brace Has graph. To audio trace, press ALT+T.0.03x−0.96x<−1
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Expression 4: 0.0 3 "x" plus 0.9 6 left brace, "x" greater than 1 , right brace Has graph. To audio trace, press ALT+T.0.03x+0.96x>1