Let $f ( x ) = \left\{ \begin{array} { c l } 2 x ^ { 2 } & x < - 2 \\4 & x = - 2 \\x + 10 & x > - 2\end{array} \right.$ Then ƒ is continuous at -2 if ƒ(-2) is redefined as

Question

Let $f ( x ) = \left\{ \begin{array} { c l } 
2 x ^ { 2 } & x < - 2 \
4 & x = - 2 \
x + 10 & x > - 2
\end{array} \right.$ Then ƒ is continuous at -2 if ƒ(-2) is redefined as

A)4
B)5
C)6
D)7
E)8

Quizplus · Accepted Answer

The Answer of Let $f ( x ) = \left\{ \begin{array} { c l } 
2 x ^ { 2 } & x < - 2 \
4 & x = - 2 \
x + 10 & x > - 2
\end{array} \right.$ Then ƒ is continuous at -2 if ƒ(-2) is redefined as

A)4
B)5
C)6
D)7
E)8

Let f(x)={2x2x<−24x=−2x+10x>−2f ( x ) = \left\{ \begin{array} { c l } 2 x ^ { 2 } & x < - 2 \\4 & x = - 2 \\x + 10 & x > - 2\end{array} \right.f(x)=⎩⎨⎧​2x24x+10​x<−2x=−2x>−2​

Let $f ( x ) = \left\{ \begin{array} { c l } 2 x ^ { 2 } & x < - 2 \\4 & x = - 2 \\x + 10 & x > - 2\end{array} \right.$