SOLUTION: Let y=f(x)=2x+4 be the given function. f(a) = ? I got 2a+4 is that right? f(a+h) = ? I got 2a+2h+4 is that right? f(a+h)-f(a) = ? I couldn't figure this one

Algebra ->  Expressions-with-variables -> SOLUTION: Let y=f(x)=2x+4 be the given function. f(a) = ? I got 2a+4 is that right? f(a+h) = ? I got 2a+2h+4 is that right? f(a+h)-f(a) = ? I couldn't figure this one       Log On


   



Question 502902: Let y=f(x)=2x+4 be the given function.
f(a) = ? I got 2a+4 is that right?
f(a+h) = ? I got 2a+2h+4 is that right?
f(a+h)-f(a) = ? I couldn't figure this one out.
Thanks

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
f%28a%29 - Yes, correct.
f%28a%2Bh%29 - Yes, also correct.
.
.
.
f%28a%2Bh%29-f%28a%29=%282a%2B2h%2B4%29-%282a%2B4%29=2a%2B2h%2B4-2a-4
Now take it from there and finish it!