SOLUTION: Please help me solve this problem.
Given f(x)= 2x + 4, find f(a-4). I would appreciate help with this problem. I am a little confused. Thank you for your help.
Algebra.Com
Question 120736: Please help me solve this problem.
Given f(x)= 2x + 4, find f(a-4). I would appreciate help with this problem. I am a little confused. Thank you for your help.
Found 2 solutions by jim_thompson5910, rapaljer:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given function
Plug in
Distribute
Combine like terms
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
If f(x)= 2x + 4, then f(a-4) means to substitute a-4 in place of the x.
f(a-4) = 2(a-4) + 4
f(a-4) = 2a -8 +4
f(a-4) = 2a-4
See my explanation on my website by clicking on my tutor name "rapaljer" anywhere on algebra.com. Click on the first link which is "Basic and Intermediate Algebra", then go to Basic Algebra, Chapter 4, and look for Section 4.09 Functional Notation.
R^2
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