Sagot :
bjr
fonction affine : f(x) = ax + b
fonction linéaire ; f(x) = ax
fonction constante : f(x) = k
1. f(x) = 52x − 1
affine
2. f(x)=5x−1+5(1−x);
f(x) = 5x - 1 + 5 - 5x
= 5x - 5x + 5 - 1
= 4
constante
3. f(x)=(x−1)² −(x² +1)
f(x) = x² - 2x + 1 - x² -1
f(x) = x² - x² -2x + 1 - 1
= -2x
linéaire
bonjour,
f (x) = 52 x - 1 affine
g ( x) = 5 x - 1 + 5 ( 1 - x )
g (x) = 5 x- 1 + 5 - 5 x = 4 = constante
f (x) = ( x - 1 )² - ( x² + 1 )
f (x) = x² - 2 x + 1 - x² - 1 = 2 x = linéaire