Question

what is the value of f(x)=1/2x+5 when x=4

Answer 1

I got f(x)=7

Really, f(x) is kind of like y. So, just plug in you x value, 4, into the x next to the 1/2 and solve! (I have a picture of my work if you were wanting)! In the end you get f(x)=7

Good luck, I hope this helps!! :)