Given f (x) = 3x2-6x-1.

What is the value of f (-23) ?

A. 8/3

B. 3

C. 13/3

D. 5

substitute x = - 23 into equation

Step-by-step explanation:

f (x) = 3x2-6x-1

this i interpret as 3 multiplied by 2. So, if you have inputted it wrong, not my fault, so here goes:

f (x) = 6 - 6 (x) - 1

substuting x = - 23 ito f (x), we get

f (-23) = 6 - 6 (-23) - 1

f (-23) = 6 + 138 - 1

f (-23) = 6 + 137

f (-23) = 143