Evaluate the function f(x) + 5x + 5: f(7), f(x-2), f(-X)

[Tye123]

THIS IS THE QUESTION THAT I HAVE YOUR HELP WILL BE GREATLY APPREICATED
EVALUATE THE FUNCTION f(x)+5x+5 at the given values of the independent variable and simplify.

A. f(7) B. f(x-2) C. f(-X)

THANKS

 

[mmm4444bot]

f(x) + 5x + 5 <<< This looks like a typographical error.

If you meant to type f(x) = 5x + 5, then here are a couple of examples for you to study.

Find f(9) and f(x + 4).

The notation f(9) is function notation.

The symbol f(9) represents a number.

It's the number we get for the value of function f when x = 9.

To determine the value of f(9), we substitute the number 9 for the variable x everywhere it appears.

f(9) = 5(9) + 5

Since five times nine is 45, we get f(9) = 45 + 5.

Therefore, f(9) = 50.

With f(x + 4), we are evaluating the function f for an expression, instead.

Replace the variable x in the definition of function f with the expression x + 4.

f(x + 4) = 5(x + 4) + 5

Now use the order of operations to simplify the expression 5(x + 4) + 5.

Do the multiplication first, using the Distributive Property.

f(x + 4) = 5(x) + 5(4) + 5

Since four times five is 20, we have f(x + 4) = 5x + 20 + 5.

Therefore, f(x + 4) = 5x + 25.

If you would like more help with your exercises, then please show whatever work you're able to do and explain what you're thinking, so that I might determine where to continue helping.

If you do not understand anything that I wrote, then be sure to let me know.