来自曹晶的问题
【Giventhedomain,D={-1,0,1},whichequationrepresentsafunction?A:y²=x²B:x²+y²=25C:y=1／xD:y=﹣x²1.ThisproblemneedyoutotestoutseveralpointssuchasDfor{-1,0,1}.2.Example,whenyouplotcoordinatepointsof(】
Giventhedomain,D={-1,0,1},whichequationrepresentsafunction?
A:y²=x²B:x²+y²=25C:y=1／xD:y=﹣x²
1.ThisproblemneedyoutotestoutseveralpointssuchasDfor{-1,0,1}.
2.Example,whenyouplotcoordinatepointsof(X,Y)suchthat(1,-1),(2,0),(3,1)which
answerchoiceinA,B,CorDwouldcreatesomethingthatlookforlikealinegraph?
3.Whenyouareabletofigurethisout,thenyoufoundtheanswer.
