SOLUTION: could someone help me with this? Which of the following functions is an even function? 1. f(x)=4x-2 2. f(x)=/6x+8/ 3. f(x)=3-x^2 4. f(x)=x/x+1

Question 147663: could someone help me with this?
Which of the following functions is an even function?
1. f(x)=4x-2
2. f(x)=/6x+8/
3. f(x)=3-x^2
4. f(x)=x/x+1

Answer by mangopeeler07(462) (Show Source): You can put this solution on YOUR website!
** if they are even
** if they are odd
**neither property is true if they are neither
An even function is a function where the same pattern is reflected on the y-axis. That means that for negative and positive x values, the y follows the same pattern. To figure out if they are even or not, plug in 1 for x, and see what you get. Then plug in -1 for x, and see what you get. If is true (if you end up with the same answer for both), then they are even. If you don't, then they are not even.
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