The equations of four lines are given. Identify which lines are perpendicular. Line 1: y=3 Line 2: y=−12x+2 Line 3: x=8 Line 4: y−5=2(x−3)

Need ! give step by step solutions on how to solve number one [tex]\frac{9-2\sqrt{3} }{12+\sqrt{3} }[/tex] number two [tex]x+4=\sqrt{13x-20}[/tex] number three (domain and range) [tex]f(x)=2\sqrt[3]{x} +1[/tex]

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Can someone me with this problem i don't understand i need