Question

$f:R\to R$ defined by $f(x)=$ $f(x)=\{\begin{array}{ll}2x;x>3& \\ x^2;1<x\le 3& \\ 3x;x\le 1& \end{array}$ then $f(-2)+f(3)+f(4)$ is

• A. 14
• B. 9
• C. 5
• D. 11

Answer 1

Answer: (D)

$f(-2)+f(3)+f(4)$
$-6+9+8$
$=11$