Question

Determine o zero das funções
A)Y= 6x+2
B)y=-4x+12
C)y=x/3 +6
D)y=12x+4
E)y=5x+25

Answer 1

a) y= 6x+2
0= 6x+2
-6x= 2
x=-2/6
x= 1/3
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b) y= -4x +12
0= -4x +12
4x= 12
x= 12/4
x=3
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c) y= x/3+6
0= x/3+6
-x/3=6
x/3= -6
x= 3*(-6)= -18
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d) y= 12x+4
0= 12x+4
-12x= 4
12x= -4
x= -4/12
x= -1/3
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e) y= 5x+25
0= 5x+25
-5x= 25
x= -25/5
x= -5