Răspuns :
g(x)=3x+b
a) g(1)=3; g(1)=3+b; b=1, x=3
b) g(2)=-1; g(2)=6+b; b=-7, x=6
c) g(-2)=-2; g(-2)=-2+b; b=0, x=-2
d) g(3)=0; g(3)=3+b; b=0, x=3
e) g(4)=0; g(4)=4+b; b=-4, x=4
f) g(0)=1; g(0)=0+b; b=1, x=0
Răspuns:
Explicație pas cu pas:
g(x) = 3x + b
a)
g(1) = 3
3*1 + b = 3
b = 3 - 3 = 0
g(x) = 3x
b)
g(2) = -1
3*2 + b = -1
b = -1 - 6 = -7
g(x) = 3x - 7
c)
g(-2) = -2
3*(-2) + b = -2
b = -2 + 6 = 4
g(x) = 3x + 4
d)
g(3) = 0
3*3 + b = 0
b = 0 - 9 = -9
g(x) = 3x - 9
e)
g(4) = 0
3*4 + b = 0
b = 0 - 12 = -12
g(x) = 3x - 12
f) iti ramane de rezolvat.