Question

The distinct linear functions which maps from $[-1,1]$ onto $[0,2]$ are

• A. $x+1$, $-x+1$
• B. $x-1$, $x+1$
• C. $-x+1$
• D. $-x+2$

Answer 1

The correct option is A $x+1$, $-x+1$

$[-1,1]\to [0,2]$ onto are

$x1!=f\left(x\right)$

$f(-1)=0$

$f\left(1\right)=2$

$-1+2=f\left(x\right)$

$f(-1)=2$

$f\left(1\right)=0$