SOLUTION: Write a function rule based on the table below. x f(x) 0 5 1 8 2 11

Algebra ->  Functions -> SOLUTION: Write a function rule based on the table below. x f(x) 0 5 1 8 2 11      Log On


   

Question 880937: Write a function rule based on the table below.
x f(x)
0 5
1 8
2 11
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Slope: (change in y)/(change in x) = 3/1 = 3

Basically as x increases by 1, y increases by 3.

Since the slope is 3, m = 3.

The y-intercept is 5, so b = 5
-------------------------------------------------------

Plug that info into y+=+mx%2Bb

y+=+mx%2Bb

y+=+3x%2B5

highlight%28f%28x%29+=+3x%2B5%29