Question

Evaluate the function for x=2:f(x)=7x-5
can someone show me how to do this please?

Answer 1

\(\large\color{black}{ \displaystyle f(x)=7x-5 }\)

This function gives you the output \(f(x)\) for every
value of \(x\) that you plug into the function.

Here, I will give you an *example*.
If I wanted to evaluate the function for *x=3*, then
this is what I would do:
\(\large\color{black}{ \displaystyle f(3)=7\cdot3-5 }\)
\(\large\color{black}{ \displaystyle f(3)=21-5 }\)
\(\large\color{black}{ \displaystyle f(3)=16 }\)

Answer 2

You need to evaluate the function for *x=2* (not x=3).
That means thaty you need to plug *2* instead of *x* into
the function f(x).

(Just as I did with 3, above, -- but this time with a "2")

Answer 3

Would the answer be 9? I did 7 x 2-5 which is 9

Answer 4

\(\large\color{black}{ \displaystyle f(2)=7\cdot2-5=14-5=9 }\)\

You are exactly right!
Good job!

Answer 5

Thank you so much!

Answer 6

yw