Respuesta :
Just replace x = 4
2x^2 - 30
=2 *(4)^2 -30
= 2 * 16 - 30
= 32 - 30
= 2
Answer is 2
Answer: The correct option is (C) 2.
Step-by-step explanation: We are given the following function :
[tex]f(x)=2x^2-30~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(I)[/tex]
We are to find the value of f(4).
To find the required value, we must substitute x = 4 in equation (i),
Therefore, from equation (i), we get
[tex]f(4)\\\\=2\times4^2-30\\\\=2\times16-30\\\\=32-30\\\\=2.[/tex]
Thus, teh required value of f(4) is 2.
Option (C) is CORRECT.
