Question

If f(x) = 3x - 5x + 7x - 11. is find f(0) + f(1) = f(2) ?​

Answer 1

Answer:

$f(0)=-11$

$f(1)=-6$

$f(2)=-1$

Step-by-step explanation:

$f(x)=3x-5x+7x-11$

⇒$f(x)=5x-11$

For $f(0)$,

$f(0)=3(0)-5(0)+7(0)-11$

           =$0-0+0-11$

           =$-11$

For $f(1)$,

$f(0)=3(1)-5(1)+7(1)-11$

           =$3-5+7-11$

           =$-6$

For $f(2)$,

$f(0)=3(2)-5(2)+7(2)-11$

           =$6-10+14-11$

           =$-1$

⇒$f(0)+f(1)=f(2)$

⇒$0+(-6)=-1$

However,

⇒$-6$ ≠ $-1$

∴ $f(0)+f(1)$ ≠ $f(2)$

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