Question

This table shows a linear relationship with a constant difference of 1 between consecutive y-values as x increases by 1.


Linear Relationships
x
f(x)
−1
−2
0 2
1 6
2 10
Using function notation, what is the equation described in the table?(1 point)
f(x)=
x+

Answer 1

f(x) = 4x + 2

Reason: f increases by 4 when x increases by 1, so slope = 4. Using point (0,2) gives intercept 2, so f(x)=4x+2.