Объяснение:
f(x)=-9-6x
а) f(9)=-9-6*9 = -63
f(-5)=-9-6*(-5) = 21
f(0)=-9-6*0 = -9
б)
1. f(x)=-9-6x=11
-6x = 20
x = - 10/3
2. f(x)=-9-6x=-5
-6x=4
x=-2/3
3. f(x)=-9-6x=0
-6x=9
x=-3/2
Объяснение:
f(x)=-9-6x
а) f(9)=-9-6*9 = -63
f(-5)=-9-6*(-5) = 21
f(0)=-9-6*0 = -9
б)
1. f(x)=-9-6x=11
-6x = 20
x = - 10/3
2. f(x)=-9-6x=-5
-6x=4
x=-2/3
3. f(x)=-9-6x=0
-6x=9
x=-3/2