If f(x) = 4x – 20, what is f(4)?

a. –12
b. –4
c. 16
d. 4

 B. -4

Step-by-step explanation:

We are given the function :

To find the value of f(4), we substitute the x equals to 4 in the above function and then simplify it to get the answer.

i.e. At x= 4 ,

Now, simplify the above expression, we get

Therefore, the correct option is Option (B.) -4 .

your answer is b ^w^ hope i

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64