For each of the following functions evaluate f 2 f1 fO f1 an
For each of the following functions, evaluate: f (-2), f(-1), f(O), f(1), and f(2)
Solution
11)given f(x)=4-2x
f(-2)=4-2(-2)=4+4=8
f(-1)=4-2(-1)=4+2=6
f(0)=4-2(0)=4+0=4
f(1)=4-2(1)=4-2=2
f(2)=4-2(2)=4-4=0
11)given f(x)=(x-3)/(x+1)
f(-2)=(-2-3)/(-2+1) =-5/-1 =5
f(-1)=(-1-3)/(-1+1) =-4/0 = undefined
f(0)=(0-3)/(0+1) =-3
f(1)=(1-3)/(1+1) =-2/2 =-1
f(2)=(2-3)/(2+1) =-1/3
