how do i do the prealgebra tables

Question

f(x)=2x    

 

x          f(x)

5           26

3            9

0             3

-1           21

-5           15

all f(x) is circled 

Answer 1

f(x) = 2x     To set up a table of values for that function, just pick different values for x and solve, which will give you f(x). 

 

 x            f(x)=2x 

-1          2(-1)=-2

 0            2(0)= 0

 1           2(1) = 2

 2           2(2) = 4      and so forth