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Determinā functia g : R inR, g(x) = 3x+b, daca :​

Determinā Functia G R InR Gx 3xb Daca class=

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.