4 2 y = x 2 y = -2x +3 -1 1 3 2 1 0    !"#$%&'()*+,-./-01 &'23456#758 9":; ('%"< =(>?>"<@%A ?> )2B *6 CDEFGHI *JKLMNO E PQPR@DS @IK ∆ RQ E -T PUV ∆ W@NOMNOXYQN  C R E b a − + ∆ Z E R E b a − − ∆ PUV ∆ R@NOMNOXYS[ C R E R E b a − PUV ∆ \@NOMNOK]Y ;/^"_MNO E -`PCaR@  ∆ RD-`I E -TFCFCaR@ 2HXMNOXYS[ C R E R D `I EFC − − RT @FG @FG @FG @FG @FG E TPbcRa TPbcRa _MNO ⇔ EPcRT TPEcR` cR-E ⇔ Rb ,cMNOXY/VcdNDecIRDbe-EI @FG @FfG @FEG b @FEG @FG @FG @FEG O H K M B A QIHHgYHNh+YMNO  E R-EPb  ⇔  E PE-bR@ ∆ RDEI E -TFCFD-bIRCaW@ 2HX" C R D EI T EFC − + RCZ E R-bF  C RCRWc C RCZ E R-bRWc E R< HgYiNYDCeCIZD-be<I  T IX" · : R · : R<@ @ DNjdNNUNVcUI · : P · : RC`@ @ !Nk :NU QIlNjdNNUNVcUmNV" RZ?5R5 RWP?5RP5R5 Ik 5?XVKndN ⇔ 5oo? : ⊥ 5!: ⊥ ? ,cpYqjrV? @FG @FG . !"#$%&'()*+,-./-01 &'23456#758 9 ":; ('%"< =(>?>"<@%A ?>