Question

Evaluate f(x) when x = 6

Answer 1

Answer: Fourth option is correct.

Explanation:

Since we have given that

`f(x)=6x^2+2,-6<x<9\\\\f(x)=12,9\leq x<13`

We need to find the value of f(x) when x = 6.

As we can see that x = 6 is lie in the interval -6<x<9.

So, f(x) would be
`6x^2+2`

So, value of f(x) at x = 6 would be

`f(x)=6(6)^2+2=216+2=218`

Hence, fourth option is correct.

Answer 2

when x = 6, you have to use the top equation .... because -6 < 6 < 9

f(x) = 6x² + 2

f(6) = 6(6)² + 2

= 6(36) + 2

= 216 + 2

= 218

Answer: D