Expression 3: "p" Subscript, 1 , Baseline left parenthesis, "x" , right parenthesis equals left parenthesis, "x" minus "S" . "x" , right parenthesis squared plus "S" . "y" Has graph. To audio trace, press ALT+T.p1x=x−S.x2+S.y
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Expression 4: "p" Subscript, 2 , Baseline left parenthesis, "x" , right parenthesis equals negative 3 "x" squared plus 2.5 Has graph. To audio trace, press ALT+T.p2x=−3x2+2.5
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Expression 5: 4 "y" equals "p" Subscript, 2 , Baseline left parenthesis, "x" , right parenthesis plus 3 "p" Subscript, 1 , Baseline left parenthesis, "x" , right parenthesis Has graph. To audio trace, press ALT+T.4y=p2x+3p1x
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left parenthesis, 3 , negative 2 , right parenthesis3,−2