Respuesta :

It should be 6
Because as equation says we have to take 6 when x is from 6 to 9 including 6

Answer:

f(x)=6 at x=6

Therefore, option 4 is correct.

Step-by-step explanation:

We have been given a function:

[tex]f(x)=  [tex]f(x)=\begin{cases}3x^2+1 & \text{ if } -4<x<6 \\ 6 & \text{ if } 6\leq x<9 \end{cases}[/tex]

We have to find the value of f(x) where x =6

The function is 6 at x= 6 from the definition of the function. Because equal to sign is with 6

Therefore, option 4 is correct.

 

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