3. For the function f (x) = - 4x - 3, which of the following is f (-2) ?

f (-2) = 5

Step-by-step explanation:

we are given with a function f (x) = - 4x - 3

we are asked to determine

f (-2)

in order to find f (-2) we will substitute x = - 2 in our function f (x)

f (x) = -4x-3

f (-2) = - 4 (-2) - 3

=8-3

=5

Hence f (-2) = 5