Question

If f(x) = 5x – 2, what is f(x + 3)? A)5x+1 B)5x+13 C)5x+15 D)5x + 17 ​

Answer 1

Ответ:

To find \( f(x + 3) \), substitute \( x + 3 \) for \( x \) in the function \( f(x) \):

\[ f(x + 3) = 5(x + 3) - 2 \]

Now, distribute the 5:

\[ f(x + 3) = 5x + 15 - 2 \]

Combine like terms:

\[ f(x + 3) = 5x + 13 \]

So, the correct answer is B) \( 5x + 13 \).