Question

For each function, what is the output of the given input? f(x)=4x+7, find f(4)

Answer 1

you have to 4 on all x.
f(4)= 4*4+7
F(4)= 16+7
F(4)= 23 thats the answer

Answer 2

That's what I thought when I put the 4 in where x is but when I used the function keys on my calculator it came up with 16x+28. So I've confused myself

Answer 3

yea that has happened to me too

Answer 4

do I have to get ride of the 4 in the f(4)?

Answer 5

no

Answer 6

Thank you!

Answer 7

you are welcome