Compute the exact value of the function for the given x-value without using a calculator. f (x) = 7x for x = 2

f (x) = 14

Step-by-step explanation:

First, you simply plug in x=2 into f (x) = 7x

Therefore you are left with f (x) = 7 (2)

Then you must notice that parenthesis mean multiplication ...

And ... 7 x 2 = 14

Hence your answer of f (x) = 14

14

Step-by-step explanation:

Substitute x = 2 into f (x)

f (2) = 7 * 2 = 14