Question

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

Answer 1

f(x)=14

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

Answer 2

14

Explanation:

Substitute x = 2 into f(x)

f(2) = 7 × 2 = 14