Como seria o Esboço destes graficos ?
x²-13x+42=0
3x²+x-14=0
5x²-30x=0
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x²-13x+42=0
a= 1
b= -13
c= 42
∆=b²-4.a.c
∆=169-4.1.42
∆=169-168
∆=1
x= -b±√∆ / 2.a
x= 13±√1 / 2.1
x= 13±1 / 2
x¹= 14/2
x¹= 7
x²= 12/2
x²= 6
3x²+x-14=0
a= 3
b= 1
c= -14
∆= b²-4.a.c
∆= 1-4.3.(-14)
∆= 1+168
∆= 169
x= -b±√∆ / 2.a
x= -1±√169 / 2.3
x= -1±13 / 6
x¹= 12/6
x¹= 2
x²= -14/6
5x²-30x=0
a= 5
b= -30
c= 0
∆= b²-4.a.c
∆= 900-4.5.0
∆= 900-0
∆= 900
x= -b±√∆ / 2.a
x= 30±√900 / 2.5
x= 30±30 / 10
x¹= 60/10
x¹= 6
x²= 0/10
x²= 0
a= 1
b= -13
c= 42
∆=b²-4.a.c
∆=169-4.1.42
∆=169-168
∆=1
x= -b±√∆ / 2.a
x= 13±√1 / 2.1
x= 13±1 / 2
x¹= 14/2
x¹= 7
x²= 12/2
x²= 6
3x²+x-14=0
a= 3
b= 1
c= -14
∆= b²-4.a.c
∆= 1-4.3.(-14)
∆= 1+168
∆= 169
x= -b±√∆ / 2.a
x= -1±√169 / 2.3
x= -1±13 / 6
x¹= 12/6
x¹= 2
x²= -14/6
5x²-30x=0
a= 5
b= -30
c= 0
∆= b²-4.a.c
∆= 900-4.5.0
∆= 900-0
∆= 900
x= -b±√∆ / 2.a
x= 30±√900 / 2.5
x= 30±30 / 10
x¹= 60/10
x¹= 6
x²= 0/10
x²= 0
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