SOLUTION: Please help! Thanks 3. Take a look at the table below and write out an equation for f(x). x -2 -1 0 1 2 f(x) -1 1 3 5 7

Algebra ->  Functions -> SOLUTION: Please help! Thanks 3. Take a look at the table below and write out an equation for f(x). x -2 -1 0 1 2 f(x) -1 1 3 5 7      Log On


   

Question 165551: Please help! Thanks

3. Take a look at the table below and write out an equation for f(x).
x -2 -1 0 1 2
f(x) -1 1 3 5 7
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
x is increasing by 1, while f(x) is increasing by 2

so f(x)=2x plus some "fudge factor" that makes the numbers right

-1=2(-2)+k __ -1=-4+k __ 3=k

f(x)=2x+3