what is f(x)=-1/2x-4 if x is 1 , 0 and -1 ?


Sagot :

f(x) =    -1/2x -4
f(1)  =   -1/2 *1 -4    =    -1/2 - 4  =  -4 1/2
f(o)      -1/2 * 0 -4    =      0 -4    = -4
f(-1) =    - 1/2* -1 -4 =   1/2-4    =  - 3 1/2
at 1 the answer is -41/2, at 0 the answer is -4,at -1 the answer is -3 1/2.