Consider the function f(x) = x2 + 3x − 7. Find the value of f(x) when x = 3 and select the correct answer below.

5
8
11
18

Question

Consider the function f(x) = x2 + 3x − 7. Find the value of f(x) when x = 3 and select the correct answer below.

 5
 8
 11
 18

anonymous · Answer

You are given the function: $$f(x) = x^2 + 3x - 7$$

Input $f(3) \Rightarrow$ into your given function.
$$f(3) = 3^2 + 3(3) - 7$$

anonymous · Answer

Do you know where to go from there?

anonymous · Answer

would it be f(3)=9+9-7 ?

anonymous · Answer

then it would equal 11 right ?

anonymous · Answer

Correct. Good job.

anonymous · Answer

thank you  and could u help with one more

anonymous · Answer

Which of the following expressions is the inverse of the function y equals quantity x minus 2 divided by 3?

 y = 3x + 2
 y = 2x + 3
 y equals quantity x minus 3 divided by 2
 y equals quantity x plus 2 divided by 3

anonymous · Answer

Sorry, I do not understand that question. I would help if I did.