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Sagot :

bonjour

1) h(x) = 1/4 * x + 5 = 1/4x+5

2) affine

3)

si x = 4, alors h(4)= 1/4*4 + 5 = 6

si x=-2 alors h(-2)= 1/4*(-2)+5 = -0,5+5 = 4,5

etc

si h(x)=0 alors 1/4x+5 = 0; x= -20

si h(x)=9 alors 1/4x+5=9 ; 1/4x=4 ;x=16

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