Question

Determine a raiz da funções :
a) f(x)= -2X+2
b) f(x)= X +1
c) f(x)= 4X-2
d) f(x)= -3X-1

Answer 1

Basta igualar a zero, o x será a raiz.


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a) -2x + 2 = 0
2x = 2
x =2/2
x= 1

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b) x + 1 = 0
x = -1

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4x -2 = 0
4x = 2
x = 1/2

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d) -3x -1 = 0
3x = -1
x = -1/3